1625372613 has 24 divisors (see below), whose sum is σ = 2482178400. Its totient is φ = 1022043744.

The previous prime is 1625372603. The next prime is 1625372629. The reversal of 1625372613 is 3162735261.

1625372613 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 37 + 2 + 613 = 666.

It is not a de Polignac number, because 1625372613 - 2¹² = 1625368517 is a prime.

It is a super-2 number, since 2×1625372613² = 5283672262180895538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625372603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18406 + ... + 59912.

It is an arithmetic number, because the mean of its divisors is an integer number (103424100).

Almost surely, 2^1625372613 is an apocalyptic number.

It is an amenable number.

1625372613 is a deficient number, since it is larger than the sum of its proper divisors (856805787).

1625372613 is a wasteful number, since it uses less digits than its factorization.

1625372613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41761 (or 41758 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 1625372613 is about 40315.9101720400. The cubic root of 1625372613 is about 1175.7571972875.

The spelling of 1625372613 in words is "one billion, six hundred twenty-five million, three hundred seventy-two thousand, six hundred thirteen".