745645525 has 6 divisors (see below), whose sum is σ = 924600482. Its totient is φ = 596516400.

The previous prime is 745645507. The next prime is 745645567. The reversal of 745645525 is 525546547.

It can be written as a sum of positive squares in 3 ways, for example, as 27889 + 745617636 = 167^2 + 27306^2 .

It is not a de Polignac number, because 745645525 - 2⁵ = 745645493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14912886 + ... + 14912935.

Almost surely, 2^745645525 is an apocalyptic number.

It is an amenable number.

745645525 is a deficient number, since it is larger than the sum of its proper divisors (178954957).

745645525 is a wasteful number, since it uses less digits than its factorization.

745645525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29825831 (or 29825826 counting only the distinct ones).

The product of its digits is 840000, while the sum is 43.

The square root of 745645525 is about 27306.5106705342. The cubic root of 745645525 is about 906.7985254778.

It can be divided in two parts, 74564 and 5525, that added together give a square (80089 = 283²).

The spelling of 745645525 in words is "seven hundred forty-five million, six hundred forty-five thousand, five hundred twenty-five".