25540510532016 has 20 divisors (see below), whose sum is σ = 65979652207832. Its totient is φ = 8513503510656.

The previous prime is 25540510531981. The next prime is 25540510532039. The reversal of 25540510532016 is 61023501504552.

It is a super-2 number, since 2×25540510532016² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266046984661 + ... + 266046984756.

Almost surely, 2^{25540510532016} is an apocalyptic number.

It is an amenable number.

25540510532016 is an abundant number, since it is smaller than the sum of its proper divisors (40439141675816).

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

25540510532016 is a wasteful number, since it uses less digits than its factorization.

25540510532016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532093969428 (or 532093969422 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 25540510532016 in words is "twenty-five trillion, five hundred forty billion, five hundred ten million, five hundred thirty-two thousand, sixteen".