74056551 has 8 divisors (see below), whose sum is σ = 101927424. Its totient is φ = 47778360.

The previous prime is 74056531. The next prime is 74056561. The reversal of 74056551 is 15565047.

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

It is not a de Polignac number, because 74056551 - 2⁹ = 74056039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74056531) 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, 398061 + ... + 398246.

It is an arithmetic number, because the mean of its divisors is an integer number (12740928).

Almost surely, 2^74056551 is an apocalyptic number.

74056551 is a deficient number, since it is larger than the sum of its proper divisors (27870873).

74056551 is a wasteful number, since it uses less digits than its factorization.

74056551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796341.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 74056551 is about 8605.6115994158. The cubic root of 74056551 is about 419.9405641518.

It can be divided in two parts, 740 and 56551, that added together give a triangular number (57291 = T₃₃₈).

The spelling of 74056551 in words is "seventy-four million, fifty-six thousand, five hundred fifty-one".