55617876 has 18 divisors (see below), whose sum is σ = 140589722. Its totient is φ = 18539280.

The previous prime is 55617833. The next prime is 55617923. The reversal of 55617876 is 67871655.

55617876 is a `hidden beast` number, since 5 + 561 + 7 + 87 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54464400 + 1153476 = 7380^2 + 1074^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 772435 + ... + 772506.

Almost surely, 2^55617876 is an apocalyptic number.

It is an amenable number.

55617876 is an abundant number, since it is smaller than the sum of its proper divisors (84971846).

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

55617876 is a wasteful number, since it uses less digits than its factorization.

55617876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544951 (or 1544946 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 55617876 is about 7457.7393357505. The cubic root of 55617876 is about 381.7140390678.

The spelling of 55617876 in words is "fifty-five million, six hundred seventeen thousand, eight hundred seventy-six".