25524017272 has 24 divisors (see below), whose sum is σ = 51822064440. Its totient is φ = 11780315040.

The previous prime is 25524017261. The next prime is 25524017381. The reversal of 25524017272 is 27271042552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9438004 + ... + 9440707.

It is an arithmetic number, because the mean of its divisors is an integer number (2159252685).

Almost surely, 2^25524017272 is an apocalyptic number.

It is an amenable number.

25524017272 is an abundant number, since it is smaller than the sum of its proper divisors (26298047168).

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

25524017272 is a wasteful number, since it uses less digits than its factorization.

25524017272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18878743 (or 18878726 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 37.

The spelling of 25524017272 in words is "twenty-five billion, five hundred twenty-four million, seventeen thousand, two hundred seventy-two".