25543054402124 has 24 divisors (see below), whose sum is σ = 51097041252768. Its totient is φ = 10944680647680.

The previous prime is 25543054402109. The next prime is 25543054402207. The reversal of 25543054402124 is 42120445034552.

It is a super-2 number, since 2×25543054402124² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97477967 + ... + 97739654.

It is an arithmetic number, because the mean of its divisors is an integer number (2129043385532).

Almost surely, 2^{25543054402124} is an apocalyptic number.

It is an amenable number.

25543054402124 is an abundant number, since it is smaller than the sum of its proper divisors (25553986850644).

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

25543054402124 is a wasteful number, since it uses less digits than its factorization.

25543054402124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195222305 (or 195222303 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 41.

Adding to 25543054402124 its reverse (42120445034552), we get a palindrome (67663499436676).

The spelling of 25543054402124 in words is "twenty-five trillion, five hundred forty-three billion, fifty-four million, four hundred two thousand, one hundred twenty-four".