55142604 has 54 divisors (see below), whose sum is σ = 153223980. Its totient is φ = 16708560.

The previous prime is 55142599. The next prime is 55142621. The reversal of 55142604 is 40624155.

55142604 is a `hidden beast` number, since 5 + 51 + 4 + 2 + 604 = 666.

55142604 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

55142604 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1974 + ... + 10685.

Almost surely, 2^55142604 is an apocalyptic number.

It is an amenable number.

55142604 is an abundant number, since it is smaller than the sum of its proper divisors (98081376).

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

55142604 is a wasteful number, since it uses less digits than its factorization.

55142604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12691 (or 12675 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 55142604 is about 7425.8066228525. The cubic root of 55142604 is about 380.6236389251.

Adding to 55142604 its reverse (40624155), we get a palindrome (95766759).

It can be divided in two parts, 5514 and 2604, that added together give a palindrome (8118).

The spelling of 55142604 in words is "fifty-five million, one hundred forty-two thousand, six hundred four".