1252765310 has 16 divisors (see below), whose sum is σ = 2276872416. Its totient is φ = 496240608.

The previous prime is 1252765301. The next prime is 1252765313. The reversal of 1252765310 is 135672521.

It is a super-2 number, since 2×1252765310² = 3138841843878792200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252765313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607109 + ... + 609168.

It is an arithmetic number, because the mean of its divisors is an integer number (142304526).

Almost surely, 2^1252765310 is an apocalyptic number.

1252765310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252765310 is a deficient number, since it is larger than the sum of its proper divisors (1024107106).

1252765310 is a wasteful number, since it uses less digits than its factorization.

1252765310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216387.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1252765310 is about 35394.4248434693. The cubic root of 1252765310 is about 1078.0111172687.

The spelling of 1252765310 in words is "one billion, two hundred fifty-two million, seven hundred sixty-five thousand, three hundred ten".