73572725 has 6 divisors (see below), whose sum is σ = 91230210. Its totient is φ = 58858160.

The previous prime is 73572683. The next prime is 73572727. The reversal of 73572725 is 52727537.

It can be written as a sum of positive squares in 3 ways, for example, as 14190289 + 59382436 = 3767^2 + 7706^2 .

It is not a de Polignac number, because 73572725 - 2⁶ = 73572661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73572727) 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, 1471430 + ... + 1471479.

It is an arithmetic number, because the mean of its divisors is an integer number (15205035).

Almost surely, 2^73572725 is an apocalyptic number.

It is an amenable number.

73572725 is a deficient number, since it is larger than the sum of its proper divisors (17657485).

73572725 is a wasteful number, since it uses less digits than its factorization.

73572725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942919 (or 2942914 counting only the distinct ones).

The product of its digits is 102900, while the sum is 38.

The square root of 73572725 is about 8577.4544592204. The cubic root of 73572725 is about 419.0240472411.

The spelling of 73572725 in words is "seventy-three million, five hundred seventy-two thousand, seven hundred twenty-five".