25481334732 has 48 divisors (see below), whose sum is σ = 67958096640. Its totient is φ = 7279538112.

The previous prime is 25481334727. The next prime is 25481334761. The reversal of 25481334732 is 23743318452.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 1272663 + ... + 1292529.

It is an arithmetic number, because the mean of its divisors is an integer number (1415793680).

Almost surely, 2^25481334732 is an apocalyptic number.

It is an amenable number.

25481334732 is an abundant number, since it is smaller than the sum of its proper divisors (42476761908).

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

25481334732 is a wasteful number, since it uses less digits than its factorization.

25481334732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35150 (or 35148 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The spelling of 25481334732 in words is "twenty-five billion, four hundred eighty-one million, three hundred thirty-four thousand, seven hundred thirty-two".