25867957 has 4 divisors (see below), whose sum is σ = 25882560. Its totient is φ = 25853356.

The previous prime is 25867951. The next prime is 25867973. The reversal of 25867957 is 75976852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25867957 is a prime.

It is a super-4 number, since 4×25867957⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25867957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25867951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4207 + ... + 8332.

It is an arithmetic number, because the mean of its divisors is an integer number (6470640).

Almost surely, 2^25867957 is an apocalyptic number.

It is an amenable number.

25867957 is a deficient number, since it is larger than the sum of its proper divisors (14603).

25867957 is a wasteful number, since it uses less digits than its factorization.

25867957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14602.

The product of its digits is 1058400, while the sum is 49.

The square root of 25867957 is about 5086.0551510970. The cubic root of 25867957 is about 295.7472466480.

The spelling of 25867957 in words is "twenty-five million, eight hundred sixty-seven thousand, nine hundred fifty-seven".