74955531 has 8 divisors (see below), whose sum is σ = 114217984. Its totient is φ = 42831720.

The previous prime is 74955523. The next prime is 74955541. The reversal of 74955531 is 13555947.

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

It is not a de Polignac number, because 74955531 - 2³ = 74955523 is a prime.

It is a super-2 number, since 2×74955531² = 11236663254983922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74955531.

It is not an unprimeable number, because it can be changed into a prime (74955511) 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, 1784635 + ... + 1784676.

It is an arithmetic number, because the mean of its divisors is an integer number (14277248).

Almost surely, 2^74955531 is an apocalyptic number.

74955531 is a deficient number, since it is larger than the sum of its proper divisors (39262453).

74955531 is a wasteful number, since it uses less digits than its factorization.

74955531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569321.

The product of its digits is 94500, while the sum is 39.

The square root of 74955531 is about 8657.6862382510. The cubic root of 74955531 is about 421.6329681566.

It can be divided in two parts, 749 and 55531, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 74955531 in words is "seventy-four million, nine hundred fifty-five thousand, five hundred thirty-one".