25262461957 has 8 divisors (see below), whose sum is σ = 25802833376. Its totient is φ = 24726894192.

The previous prime is 25262461949. The next prime is 25262461993. The reversal of 25262461957 is 75916426252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25262461957 - 2³ = 25262461949 is a prime.

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 25262461957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25262411957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190283 + ... + 1211320.

It is an arithmetic number, because the mean of its divisors is an integer number (3225354172).

Almost surely, 2^25262461957 is an apocalyptic number.

It is an amenable number.

25262461957 is a deficient number, since it is larger than the sum of its proper divisors (540371419).

25262461957 is a wasteful number, since it uses less digits than its factorization.

25262461957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401827.

The product of its digits is 1814400, while the sum is 49.

The spelling of 25262461957 in words is "twenty-five billion, two hundred sixty-two million, four hundred sixty-one thousand, nine hundred fifty-seven".