25338319530 has 16 divisors (see below), whose sum is σ = 60811966944. Its totient is φ = 6756885200.

The previous prime is 25338319499. The next prime is 25338319543. The reversal of 25338319530 is 3591383352.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422305296 + ... + 422305355.

It is an arithmetic number, because the mean of its divisors is an integer number (3800747934).

Almost surely, 2^25338319530 is an apocalyptic number.

25338319530 is an abundant number, since it is smaller than the sum of its proper divisors (35473647414).

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

25338319530 is a wasteful number, since it uses less digits than its factorization.

25338319530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844610661.

The product of its (nonzero) digits is 291600, while the sum is 42.

The spelling of 25338319530 in words is "twenty-five billion, three hundred thirty-eight million, three hundred nineteen thousand, five hundred thirty".