25538757026457 has 8 divisors (see below), whose sum is σ = 34053176398176. Its totient is φ = 17025087836192.

The previous prime is 25538757026443. The next prime is 25538757026501. The reversal of 25538757026457 is 75462075783552.

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 25538757026457 - 2⁴ = 25538757026441 is a prime.

It is a super-2 number, since 2×25538757026457² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25538757026857) 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, 187465923 + ... + 187602104.

It is an arithmetic number, because the mean of its divisors is an integer number (4256647049772).

Almost surely, 2^{25538757026457} is an apocalyptic number.

It is an amenable number.

25538757026457 is a deficient number, since it is larger than the sum of its proper divisors (8514419371719).

25538757026457 is a wasteful number, since it uses less digits than its factorization.

25538757026457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375090727.

The product of its (nonzero) digits is 493920000, while the sum is 66.

The spelling of 25538757026457 in words is "twenty-five trillion, five hundred thirty-eight billion, seven hundred fifty-seven million, twenty-six thousand, four hundred fifty-seven".