25371722532 has 96 divisors (see below), whose sum is σ = 64720115712. Its totient is φ = 7689038976.

The previous prime is 25371722521. The next prime is 25371722543. The reversal of 25371722532 is 23522717352.

It is an interprime number because it is at equal distance from previous prime (25371722521) and next prime (25371722543).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4490133 + ... + 4495779.

It is an arithmetic number, because the mean of its divisors is an integer number (674167872).

Almost surely, 2^25371722532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25371722532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32360057856).

25371722532 is an abundant number, since it is smaller than the sum of its proper divisors (39348393180).

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

25371722532 is a wasteful number, since it uses less digits than its factorization.

25371722532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097 (or 6095 counting only the distinct ones).

The product of its digits is 176400, while the sum is 39.

The spelling of 25371722532 in words is "twenty-five billion, three hundred seventy-one million, seven hundred twenty-two thousand, five hundred thirty-two".