25021240252 has 36 divisors (see below), whose sum is σ = 45798761736. Its totient is φ = 11959460800.

The previous prime is 25021240243. The next prime is 25021240313. The reversal of 25021240252 is 25204212052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302943 + ... + 376585.

It is an arithmetic number, because the mean of its divisors is an integer number (1272187826).

Almost surely, 2^25021240252 is an apocalyptic number.

It is an amenable number.

25021240252 is a deficient number, since it is larger than the sum of its proper divisors (20777521484).

25021240252 is a wasteful number, since it uses less digits than its factorization.

25021240252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73806 (or 73775 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The spelling of 25021240252 in words is "twenty-five billion, twenty-one million, two hundred forty thousand, two hundred fifty-two".