5145621625 has 16 divisors (see below), whose sum is σ = 6799487760. Its totient is φ = 3874348800.

The previous prime is 5145621623. The next prime is 5145621643. The reversal of 5145621625 is 5261265415.

It can be written as a sum of positive squares in 8 ways, for example, as 2610801216 + 2534820409 = 51096^2 + 50347^2 .

It is not a de Polignac number, because 5145621625 - 2¹ = 5145621623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5145621623) 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 15 ways as a sum of consecutive naturals, for example, 1208610 + ... + 1212859.

It is an arithmetic number, because the mean of its divisors is an integer number (424967985).

Almost surely, 2^5145621625 is an apocalyptic number.

It is an amenable number.

5145621625 is a deficient number, since it is larger than the sum of its proper divisors (1653866135).

5145621625 is a wasteful number, since it uses less digits than its factorization.

5145621625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421501 (or 2421491 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 5145621625 is about 71732.9884014322. The cubic root of 5145621625 is about 1726.4179757203.

The spelling of 5145621625 in words is "five billion, one hundred forty-five million, six hundred twenty-one thousand, six hundred twenty-five".