25531602054 has 32 divisors (see below), whose sum is σ = 58410961920. Its totient is φ = 7288116672.

The previous prime is 25531602017. The next prime is 25531602071. The reversal of 25531602054 is 45020613552.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229239 + ... + 321890.

It is an arithmetic number, because the mean of its divisors is an integer number (1825342560).

Almost surely, 2^25531602054 is an apocalyptic number.

25531602054 is an abundant number, since it is smaller than the sum of its proper divisors (32879359866).

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

25531602054 is a wasteful number, since it uses less digits than its factorization.

25531602054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552244.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 25531602054 in words is "twenty-five billion, five hundred thirty-one million, six hundred two thousand, fifty-four".