25772985 has 40 divisors (see below), whose sum is σ = 52806336. Its totient is φ = 11780640.

The previous prime is 25772951. The next prime is 25772993. The reversal of 25772985 is 58927752.

It is a happy number.

It is not a de Polignac number, because 25772985 - 2⁶ = 25772921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25772985.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1711 + ... + 7380.

Almost surely, 2^25772985 is an apocalyptic number.

It is an amenable number.

25772985 is an abundant number, since it is smaller than the sum of its proper divisors (27033351).

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

25772985 is an equidigital number, since it uses as much as digits as its factorization.

25772985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9115 (or 9106 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 25772985 is about 5076.7100567198. The cubic root of 25772985 is about 295.3848658633.

The spelling of 25772985 in words is "twenty-five million, seven hundred seventy-two thousand, nine hundred eighty-five".