25400041252 has 6 divisors (see below), whose sum is σ = 44450072198. Its totient is φ = 12700020624.

The previous prime is 25400041201. The next prime is 25400041267. The reversal of 25400041252 is 25214000452.

It can be written as a sum of positive squares in only one way, i.e., 24817591296 + 582449956 = 157536^2 + 24134^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3175005153 + ... + 3175005160.

Almost surely, 2^25400041252 is an apocalyptic number.

It is an amenable number.

25400041252 is a deficient number, since it is larger than the sum of its proper divisors (19050030946).

25400041252 is a wasteful number, since it uses less digits than its factorization.

25400041252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6350010317 (or 6350010315 counting only the distinct ones).

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

The spelling of 25400041252 in words is "twenty-five billion, four hundred million, forty-one thousand, two hundred fifty-two".