25269240 has 64 divisors (see below), whose sum is σ = 79804800. Its totient is φ = 6383232.

The previous prime is 25269217. The next prime is 25269241. The reversal of 25269240 is 4296252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 25269198 and 25269207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25269241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3262 + ... + 7821.

It is an arithmetic number, because the mean of its divisors is an integer number (1246950).

Almost surely, 2^25269240 is an apocalyptic number.

25269240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25269240 is an abundant number, since it is smaller than the sum of its proper divisors (54535560).

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

25269240 is a wasteful number, since it uses less digits than its factorization.

25269240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11116 (or 11112 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 25269240 is about 5026.8518975597. The cubic root of 25269240 is about 293.4477113641.

The spelling of 25269240 in words is "twenty-five million, two hundred sixty-nine thousand, two hundred forty".