25517482970 has 32 divisors (see below), whose sum is σ = 55580940288. Its totient is φ = 8234212608.

The previous prime is 25517482967. The next prime is 25517482993. The reversal of 25517482970 is 7928471552.

It is a super-2 number, since 2×25517482970² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10720442 + ... + 10722821.

It is an arithmetic number, because the mean of its divisors is an integer number (1736904384).

Almost surely, 2^25517482970 is an apocalyptic number.

25517482970 is an abundant number, since it is smaller than the sum of its proper divisors (30063457318).

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

25517482970 is a wasteful number, since it uses less digits than its factorization.

25517482970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21443294.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 25517482970 in words is "twenty-five billion, five hundred seventeen million, four hundred eighty-two thousand, nine hundred seventy".