25397090330 has 16 divisors (see below), whose sum is σ = 48403866600. Its totient is φ = 9561257472.

The previous prime is 25397090321. The next prime is 25397090333. The reversal of 25397090330 is 3309079352.

It can be written as a sum of positive squares in 4 ways, for example, as 23583437761 + 1813652569 = 153569^2 + 42587^2 .

It is not an unprimeable number, because it can be changed into a prime (25397090333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74697155 + ... + 74697494.

Almost surely, 2^25397090330 is an apocalyptic number.

25397090330 is a deficient number, since it is larger than the sum of its proper divisors (23006776270).

25397090330 is a wasteful number, since it uses less digits than its factorization.

25397090330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149394673.

The product of its (nonzero) digits is 153090, while the sum is 41.

The spelling of 25397090330 in words is "twenty-five billion, three hundred ninety-seven million, ninety thousand, three hundred thirty".