55671604 has 24 divisors (see below), whose sum is σ = 100819656. Its totient is φ = 26880000.

The previous prime is 55671601. The next prime is 55671611. The reversal of 55671604 is 40617655.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14455204 + 41216400 = 3802^2 + 6420^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55671604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55671601) 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, 14884 + ... + 18244.

It is an arithmetic number, because the mean of its divisors is an integer number (4200819).

Almost surely, 2^55671604 is an apocalyptic number.

It is an amenable number.

55671604 is a deficient number, since it is larger than the sum of its proper divisors (45148052).

55671604 is a wasteful number, since it uses less digits than its factorization.

55671604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507 (or 3505 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 55671604 is about 7461.3406302085. The cubic root of 55671604 is about 381.8369140195.

The spelling of 55671604 in words is "fifty-five million, six hundred seventy-one thousand, six hundred four".