1252252875551 has 4 divisors (see below), whose sum is σ = 1260545941104. Its totient is φ = 1243959810000.

The previous prime is 1252252875481. The next prime is 1252252875557. The reversal of 1252252875551 is 1555782522521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1252252875551 - 2²⁶ = 1252185766687 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 1252252875551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252252875557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4146532550 + ... + 4146532851.

It is an arithmetic number, because the mean of its divisors is an integer number (315136485276).

Almost surely, 2^{1252252875551} is an apocalyptic number.

1252252875551 is a deficient number, since it is larger than the sum of its proper divisors (8293065553).

1252252875551 is an equidigital number, since it uses as much as digits as its factorization.

1252252875551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8293065552.

The product of its digits is 2800000, while the sum is 50.

The spelling of 1252252875551 in words is "one trillion, two hundred fifty-two billion, two hundred fifty-two million, eight hundred seventy-five thousand, five hundred fifty-one".