25220132434 has 64 divisors (see below), whose sum is σ = 46754364672. Its totient is φ = 9957427200.

The previous prime is 25220132423. The next prime is 25220132447. The reversal of 25220132434 is 43423102252.

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, 3059182 + ... + 3067414.

It is an arithmetic number, because the mean of its divisors is an integer number (730536948).

Almost surely, 2^25220132434 is an apocalyptic number.

25220132434 is a deficient number, since it is larger than the sum of its proper divisors (21534232238).

25220132434 is a wasteful number, since it uses less digits than its factorization.

25220132434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 25220132434 its reverse (43423102252), we get a palindrome (68643234686).

It can be divided in two parts, 252201 and 32434, that added together give a triangular number (284635 = T₇₅₄).

The spelling of 25220132434 in words is "twenty-five billion, two hundred twenty million, one hundred thirty-two thousand, four hundred thirty-four".