25145522560 has 64 divisors (see below), whose sum is σ = 60546200400. Its totient is φ = 9985812480.

The previous prime is 25145522531. The next prime is 25145522617. The reversal of 25145522560 is 6522554152.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52371 + ... + 230290.

Almost surely, 2^25145522560 is an apocalyptic number.

25145522560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25145522560 is an abundant number, since it is smaller than the sum of its proper divisors (35400677840).

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

25145522560 is a wasteful number, since it uses less digits than its factorization.

25145522560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282819 (or 282807 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 25145522560 in words is "twenty-five billion, one hundred forty-five million, five hundred twenty-two thousand, five hundred sixty".