1957324825 has 6 divisors (see below), whose sum is σ = 2427082814. Its totient is φ = 1565859840.

The previous prime is 1957324819. The next prime is 1957324829. The reversal of 1957324825 is 5284237591.

It can be written as a sum of positive squares in 3 ways, for example, as 502970329 + 1454354496 = 22427^2 + 38136^2 .

It is not a de Polignac number, because 1957324825 - 2²³ = 1948936217 is a prime.

It is a super-2 number, since 2×1957324825² = 7662240941122561250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1957324829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39146472 + ... + 39146521.

Almost surely, 2^1957324825 is an apocalyptic number.

It is an amenable number.

1957324825 is a deficient number, since it is larger than the sum of its proper divisors (469757989).

1957324825 is an equidigital number, since it uses as much as digits as its factorization.

1957324825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78293003 (or 78292998 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 1957324825 is about 44241.6639040622. The cubic root of 1957324825 is about 1250.8953212335.

The spelling of 1957324825 in words is "one billion, nine hundred fifty-seven million, three hundred twenty-four thousand, eight hundred twenty-five".