25401232254 has 32 divisors (see below), whose sum is σ = 50963592960. Its totient is φ = 8440256000.

The previous prime is 25401232247. The next prime is 25401232271. The reversal of 25401232254 is 45223210452.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4021759 + ... + 4028069.

It is an arithmetic number, because the mean of its divisors is an integer number (1592612280).

Almost surely, 2^25401232254 is an apocalyptic number.

25401232254 is an abundant number, since it is smaller than the sum of its proper divisors (25562360706).

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

25401232254 is a wasteful number, since it uses less digits than its factorization.

25401232254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8336.

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 25401232254 in words is "twenty-five billion, four hundred one million, two hundred thirty-two thousand, two hundred fifty-four".