25039016530 has 64 divisors (see below), whose sum is σ = 50355043200. Its totient is φ = 8885560320.

The previous prime is 25039016467. The next prime is 25039016543. The reversal of 25039016530 is 3561093052.

It is a happy number.

It is a super-2 number, since 2×25039016530² (a number of 22 digits) contains 22 as substring.

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, 9595866 + ... + 9598474.

It is an arithmetic number, because the mean of its divisors is an integer number (786797550).

Almost surely, 2^25039016530 is an apocalyptic number.

25039016530 is an abundant number, since it is smaller than the sum of its proper divisors (25316026670).

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

25039016530 is a wasteful number, since it uses less digits than its factorization.

25039016530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699.

The product of its (nonzero) digits is 24300, while the sum is 34.

The spelling of 25039016530 in words is "twenty-five billion, thirty-nine million, sixteen thousand, five hundred thirty".