1252525615 has 16 divisors (see below), whose sum is σ = 1642582656. Its totient is φ = 909309600.

The previous prime is 1252525583. The next prime is 1252525633. The reversal of 1252525615 is 5165252521.

It is not a de Polignac number, because 1252525615 - 2⁵ = 1252525583 is a prime.

It is a super-2 number, since 2×1252525615² = 3137640832462256450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11464 + ... + 51346.

It is an arithmetic number, because the mean of its divisors is an integer number (102661416).

Almost surely, 2^1252525615 is an apocalyptic number.

1252525615 is a deficient number, since it is larger than the sum of its proper divisors (390057041).

1252525615 is a wasteful number, since it uses less digits than its factorization.

1252525615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40470.

The product of its digits is 30000, while the sum is 34.

The square root of 1252525615 is about 35391.0386256182. The cubic root of 1252525615 is about 1077.9423599486.

The spelling of 1252525615 in words is "one billion, two hundred fifty-two million, five hundred twenty-five thousand, six hundred fifteen".