56554828615 has 4 divisors (see below), whose sum is σ = 67865794344. Its totient is φ = 45243862888.

The previous prime is 56554828609. The next prime is 56554828621. The reversal of 56554828615 is 51682845565.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (56554828609) and next prime (56554828621).

It is a cyclic number.

It is not a de Polignac number, because 56554828615 - 2⁷ = 56554828487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5655482857 + ... + 5655482866.

It is an arithmetic number, because the mean of its divisors is an integer number (16966448586).

Almost surely, 2^56554828615 is an apocalyptic number.

56554828615 is a deficient number, since it is larger than the sum of its proper divisors (11310965729).

56554828615 is a wasteful number, since it uses less digits than its factorization.

56554828615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11310965728.

The product of its digits is 11520000, while the sum is 55.

The spelling of 56554828615 in words is "fifty-six billion, five hundred fifty-four million, eight hundred twenty-eight thousand, six hundred fifteen".