25543100452 has 12 divisors (see below), whose sum is σ = 47053079920. Its totient is φ = 12099363336.

The previous prime is 25543100431. The next prime is 25543100459. The reversal of 25543100452 is 25400134552.

It is not an unprimeable number, because it can be changed into a prime (25543100459) 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 3 ways as a sum of consecutive naturals, for example, 168046638 + ... + 168046789.

Almost surely, 2^25543100452 is an apocalyptic number.

It is an amenable number.

25543100452 is a deficient number, since it is larger than the sum of its proper divisors (21509979468).

25543100452 is a wasteful number, since it uses less digits than its factorization.

25543100452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336093450 (or 336093448 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 25543100452 in words is "twenty-five billion, five hundred forty-three million, one hundred thousand, four hundred fifty-two".