25073342172 has 36 divisors (see below), whose sum is σ = 66715619880. Its totient is φ = 7917897312.

The previous prime is 25073342149. The next prime is 25073342197. The reversal of 25073342172 is 27124337052.

25073342172 is a `hidden beast` number, since 250 + 7 + 334 + 2 + 1 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18327783 + ... + 18329150.

Almost surely, 2^25073342172 is an apocalyptic number.

It is an amenable number.

25073342172 is an abundant number, since it is smaller than the sum of its proper divisors (41642277708).

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

25073342172 is a wasteful number, since it uses less digits than its factorization.

25073342172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36656962 (or 36656957 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 25073342172 in words is "twenty-five billion, seventy-three million, three hundred forty-two thousand, one hundred seventy-two".