36572173425 has 18 divisors (see below), whose sum is σ = 65504826582. Its totient is φ = 19505159040.

The previous prime is 36572173409. The next prime is 36572173459. The reversal of 36572173425 is 52437127563.

36572173425 is a `hidden beast` number, since 3 + 6 + 5 + 7 + 217 + 3 + 425 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 268206129 + 36303967296 = 16377^2 + 190536^2 .

It is not a de Polignac number, because 36572173425 - 2⁴ = 36572173409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 81271272 + ... + 81271721.

Almost surely, 2^36572173425 is an apocalyptic number.

It is an amenable number.

36572173425 is a deficient number, since it is larger than the sum of its proper divisors (28932653157).

36572173425 is a wasteful number, since it uses less digits than its factorization.

36572173425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162543009 (or 162543001 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The spelling of 36572173425 in words is "thirty-six billion, five hundred seventy-two million, one hundred seventy-three thousand, four hundred twenty-five".