74525613 has 8 divisors (see below), whose sum is σ = 99686208. Its totient is φ = 49524384.

The previous prime is 74525609. The next prime is 74525623. The reversal of 74525613 is 31652547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74525613 - 2² = 74525609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74525623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38745 + ... + 40622.

It is an arithmetic number, because the mean of its divisors is an integer number (12460776).

Almost surely, 2^74525613 is an apocalyptic number.

It is an amenable number.

74525613 is a deficient number, since it is larger than the sum of its proper divisors (25160595).

74525613 is a wasteful number, since it uses less digits than its factorization.

74525613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79683.

The product of its digits is 25200, while the sum is 33.

The square root of 74525613 is about 8632.8218445651. The cubic root of 74525613 is about 420.8253102894.

The spelling of 74525613 in words is "seventy-four million, five hundred twenty-five thousand, six hundred thirteen".