1252557351 has 12 divisors (see below), whose sum is σ = 1876259112. Its totient is φ = 835038072.

The previous prime is 1252557307. The next prime is 1252557359. The reversal of 1252557351 is 1537552521.

1252557351 is a `hidden beast` number, since 1 + 2 + 52 + 557 + 3 + 51 = 666.

It is not a de Polignac number, because 1252557351 - 2¹⁴ = 1252540967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252557359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2577036 + ... + 2577521.

It is an arithmetic number, because the mean of its divisors is an integer number (156354926).

Almost surely, 2^1252557351 is an apocalyptic number.

1252557351 is a deficient number, since it is larger than the sum of its proper divisors (623701761).

1252557351 is an frugal number, since it uses more digits than its factorization.

1252557351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154572 (or 5154560 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 1252557351 is about 35391.4869848669. The cubic root of 1252557351 is about 1077.9514640312.

The spelling of 1252557351 in words is "one billion, two hundred fifty-two million, five hundred fifty-seven thousand, three hundred fifty-one".