74525015 has 4 divisors (see below), whose sum is σ = 89430024. Its totient is φ = 59620008.

The previous prime is 74524979. The next prime is 74525021. The reversal of 74525015 is 51052547.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74525015 - 2¹⁶ = 74459479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7452497 + ... + 7452506.

It is an arithmetic number, because the mean of its divisors is an integer number (22357506).

Almost surely, 2^74525015 is an apocalyptic number.

74525015 is a deficient number, since it is larger than the sum of its proper divisors (14905009).

74525015 is a wasteful number, since it uses less digits than its factorization.

74525015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14905008.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 74525015 is about 8632.7872092390. The cubic root of 74525015 is about 420.8241847067.

The spelling of 74525015 in words is "seventy-four million, five hundred twenty-five thousand, fifteen".