1252504025551 has 8 divisors (see below), whose sum is σ = 1273754793600. Its totient is φ = 1231253987160.

The previous prime is 1252504025537. The next prime is 1252504025561. The reversal of 1252504025551 is 1555204052521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252504025551 - 2²⁹ = 1251967154639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252504025551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252504025561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4142016 + ... + 4434106.

It is an arithmetic number, because the mean of its divisors is an integer number (159219349200).

Almost surely, 2^{1252504025551} is an apocalyptic number.

1252504025551 is a deficient number, since it is larger than the sum of its proper divisors (21250768049).

1252504025551 is an equidigital number, since it uses as much as digits as its factorization.

1252504025551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364829.

The product of its (nonzero) digits is 100000, while the sum is 37.

The spelling of 1252504025551 in words is "one trillion, two hundred fifty-two billion, five hundred four million, twenty-five thousand, five hundred fifty-one".