25265916 has 36 divisors (see below), whose sum is σ = 68780712. Its totient is φ = 7773984.

The previous prime is 25265909. The next prime is 25265917. The reversal of 25265916 is 61956252.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×25265916² = 1276733022638112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25265917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26526 + ... + 27461.

Almost surely, 2^25265916 is an apocalyptic number.

25265916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25265916 is an abundant number, since it is smaller than the sum of its proper divisors (43514796).

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

25265916 is a wasteful number, since it uses less digits than its factorization.

25265916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54010 (or 54005 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 25265916 is about 5026.5212622648. The cubic root of 25265916 is about 293.4348437701.

The spelling of 25265916 in words is "twenty-five million, two hundred sixty-five thousand, nine hundred sixteen".