25005510052 has 24 divisors (see below), whose sum is σ = 47586007224. Its totient is φ = 11449262592.

The previous prime is 25005510037. The next prime is 25005510053. The reversal of 25005510052 is 25001550052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12413079396 + 12592430656 = 111414^2 + 112216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25005509999 and 25005510026.

It is not an unprimeable number, because it can be changed into a prime (25005510053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4966783 + ... + 4971814.

It is an arithmetic number, because the mean of its divisors is an integer number (1982750301).

Almost surely, 2^25005510052 is an apocalyptic number.

It is an amenable number.

25005510052 is a deficient number, since it is larger than the sum of its proper divisors (22580497172).

25005510052 is a wasteful number, since it uses less digits than its factorization.

25005510052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9938655 (or 9938653 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The spelling of 25005510052 in words is "twenty-five billion, five million, five hundred ten thousand, fifty-two".