25414420 has 48 divisors (see below), whose sum is σ = 55641600. Its totient is φ = 9740160.

The previous prime is 25414409. The next prime is 25414421. The reversal of 25414420 is 2441452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25414391 and 25414400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25414421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110866 + ... + 111094.

It is an arithmetic number, because the mean of its divisors is an integer number (1159200).

Almost surely, 2^25414420 is an apocalyptic number.

25414420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25414420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27820800).

25414420 is an abundant number, since it is smaller than the sum of its proper divisors (30227180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25414420 is a wasteful number, since it uses less digits than its factorization.

25414420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 25414420 is about 5041.2716649671. The cubic root of 25414420 is about 294.0086226974.

Adding to 25414420 its reverse (2441452), we get a palindrome (27855872).

The spelling of 25414420 in words is "twenty-five million, four hundred fourteen thousand, four hundred twenty".