55504156 has 6 divisors (see below), whose sum is σ = 97132280. Its totient is φ = 27752076.

The previous prime is 55504151. The next prime is 55504199. The reversal of 55504156 is 65140555.

It is a super-2 number, since 2×55504156² = 6161422666544672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55504151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6938016 + ... + 6938023.

Almost surely, 2^55504156 is an apocalyptic number.

It is an amenable number.

55504156 is a deficient number, since it is larger than the sum of its proper divisors (41628124).

55504156 is a wasteful number, since it uses less digits than its factorization.

55504156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13876043 (or 13876041 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 55504156 is about 7450.1111401106. Note that the first 4 decimals coincide. The cubic root of 55504156 is about 381.4537022683.

The spelling of 55504156 in words is "fifty-five million, five hundred four thousand, one hundred fifty-six".