25942977 has 16 divisors (see below), whose sum is σ = 38532480. Its totient is φ = 17251056.

The previous prime is 25942951. The next prime is 25942991. The reversal of 25942977 is 77924952.

It is not a de Polignac number, because 25942977 - 2⁶ = 25942913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25942997) 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, 12163 + ... + 14135.

It is an arithmetic number, because the mean of its divisors is an integer number (2408280).

Almost surely, 2^25942977 is an apocalyptic number.

25942977 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25942977 is a deficient number, since it is larger than the sum of its proper divisors (12589503).

25942977 is a wasteful number, since it uses less digits than its factorization.

25942977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469 (or 2463 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 25942977 is about 5093.4248791947. The cubic root of 25942977 is about 296.0328708626.

The spelling of 25942977 in words is "twenty-five million, nine hundred forty-two thousand, nine hundred seventy-seven".