55977474 has 16 divisors (see below), whose sum is σ = 127948608. Its totient is φ = 15993552.

The previous prime is 55977463. The next prime is 55977491. The reversal of 55977474 is 47477955.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666357 + ... + 666440.

It is an arithmetic number, because the mean of its divisors is an integer number (7996788).

Almost surely, 2^55977474 is an apocalyptic number.

55977474 is an abundant number, since it is smaller than the sum of its proper divisors (71971134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55977474 is a wasteful number, since it uses less digits than its factorization.

55977474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332809.

The product of its digits is 1234800, while the sum is 48.

The square root of 55977474 is about 7481.8095404788. The cubic root of 55977474 is about 382.5349312368.

The spelling of 55977474 in words is "fifty-five million, nine hundred seventy-seven thousand, four hundred seventy-four".