25212136054 has 16 divisors (see below), whose sum is σ = 43274117376. Its totient is φ = 10791873000.

The previous prime is 25212136043. The next prime is 25212136057. The reversal of 25212136054 is 45063121252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25212136057) 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, 1098922 + ... + 1121629.

It is an arithmetic number, because the mean of its divisors is an integer number (2704632336).

Almost surely, 2^25212136054 is an apocalyptic number.

25212136054 is a deficient number, since it is larger than the sum of its proper divisors (18061981322).

25212136054 is a wasteful number, since it uses less digits than its factorization.

25212136054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221371.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 25212136054 in words is "twenty-five billion, two hundred twelve million, one hundred thirty-six thousand, fifty-four".