74055531 has 16 divisors (see below), whose sum is σ = 111432960. Its totient is φ = 43333920.

The previous prime is 74055529. The next prime is 74055539. The reversal of 74055531 is 13555047.

It is not a de Polignac number, because 74055531 - 2¹ = 74055529 is a prime.

It is a super-2 number, since 2×74055531² = 10968443343383922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74055539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37735 + ... + 39648.

It is an arithmetic number, because the mean of its divisors is an integer number (6964560).

Almost surely, 2^74055531 is an apocalyptic number.

74055531 is a deficient number, since it is larger than the sum of its proper divisors (37377429).

74055531 is a wasteful number, since it uses less digits than its factorization.

74055531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77426.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 74055531 is about 8605.5523355564. The cubic root of 74055531 is about 419.9386361596.

The spelling of 74055531 in words is "seventy-four million, fifty-five thousand, five hundred thirty-one".