55615474 has 8 divisors (see below), whose sum is σ = 83497968. Its totient is φ = 27782820.

The previous prime is 55615471. The next prime is 55615487. The reversal of 55615474 is 47451655.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (55615471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9532 + ... + 14215.

It is an arithmetic number, because the mean of its divisors is an integer number (10437246).

Almost surely, 2^55615474 is an apocalyptic number.

55615474 is a deficient number, since it is larger than the sum of its proper divisors (27882494).

55615474 is a wasteful number, since it uses less digits than its factorization.

55615474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24920.

The product of its digits is 84000, while the sum is 37.

The square root of 55615474 is about 7457.5782932531. The cubic root of 55615474 is about 381.7085438902.

The spelling of 55615474 in words is "fifty-five million, six hundred fifteen thousand, four hundred seventy-four".