25133042543550 has 24 divisors (see below), whose sum is σ = 62329945508376. Its totient is φ = 6702144678240.

The previous prime is 25133042543537. The next prime is 25133042543579. The reversal of 25133042543550 is 5534524033152.

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, 83776808329 + ... + 83776808628.

It is an arithmetic number, because the mean of its divisors is an integer number (2597081062849).

Almost surely, 2^{25133042543550} is an apocalyptic number.

25133042543550 is an abundant number, since it is smaller than the sum of its proper divisors (37196902964826).

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

25133042543550 is a wasteful number, since it uses less digits than its factorization.

25133042543550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167553616972 (or 167553616967 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 25133042543550 in words is "twenty-five trillion, one hundred thirty-three billion, forty-two million, five hundred forty-three thousand, five hundred fifty".