1252587051 has 16 divisors (see below), whose sum is σ = 1887139200. Its totient is φ = 820903464.

The previous prime is 1252587019. The next prime is 1252587059. The reversal of 1252587051 is 1507852521.

1252587051 is a `hidden beast` number, since 1 + 2 + 525 + 87 + 0 + 51 = 666.

It is not a de Polignac number, because 1252587051 - 2⁵ = 1252587019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1252586997 and 1252587015.

It is not an unprimeable number, because it can be changed into a prime (1252587059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391561 + ... + 394746.

It is an arithmetic number, because the mean of its divisors is an integer number (117946200).

Almost surely, 2^1252587051 is an apocalyptic number.

1252587051 is a deficient number, since it is larger than the sum of its proper divisors (634552149).

1252587051 is an equidigital number, since it uses as much as digits as its factorization.

1252587051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786375 (or 786369 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

The square root of 1252587051 is about 35391.9065748089. The cubic root of 1252587051 is about 1077.9599839087.

The spelling of 1252587051 in words is "one billion, two hundred fifty-two million, five hundred eighty-seven thousand, fifty-one".