1252722507 has 4 divisors (see below), whose sum is σ = 1670296680. Its totient is φ = 835148336.

The previous prime is 1252722491. The next prime is 1252722511. The reversal of 1252722507 is 7052272521.

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 1252722507 - 2⁴ = 1252722491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252722547) 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, 208787082 + ... + 208787087.

It is an arithmetic number, because the mean of its divisors is an integer number (417574170).

Almost surely, 2^1252722507 is an apocalyptic number.

1252722507 is a deficient number, since it is larger than the sum of its proper divisors (417574173).

1252722507 is an equidigital number, since it uses as much as digits as its factorization.

1252722507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417574172.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 1252722507 is about 35393.8201809299. The cubic root of 1252722507 is about 1077.9988397269.

The spelling of 1252722507 in words is "one billion, two hundred fifty-two million, seven hundred twenty-two thousand, five hundred seven".