25480224 has 192 divisors, whose sum is σ = 92897280. Its totient is φ = 6600960.

The previous prime is 25480211. The next prime is 25480261. The reversal of 25480224 is 42208452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66337 + ... + 66719.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^25480224 is an apocalyptic number.

25480224 is a gapful number since it is divisible by the number (24) 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 25480224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46448640).

25480224 is an abundant number, since it is smaller than the sum of its proper divisors (67417056).

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

25480224 is a wasteful number, since it uses less digits than its factorization.

25480224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 25480224 is about 5047.7939736087. The cubic root of 25480224 is about 294.2621568385.

Adding to 25480224 its reverse (42208452), we get a palindrome (67688676).

It can be divided in two parts, 25 and 480224, that added together give a square (480249 = 693²).

The spelling of 25480224 in words is "twenty-five million, four hundred eighty thousand, two hundred twenty-four".