55977853599 has 32 divisors (see below), whose sum is σ = 87335712000. Its totient is φ = 35337904992.

The previous prime is 55977853597. The next prime is 55977853639. The reversal of 55977853599 is 99535877955.

It is not a de Polignac number, because 55977853599 - 2¹ = 55977853597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55977853597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1123192 + ... + 1171970.

It is an arithmetic number, because the mean of its divisors is an integer number (2729241000).

Almost surely, 2^55977853599 is an apocalyptic number.

55977853599 is a deficient number, since it is larger than the sum of its proper divisors (31357858401).

55977853599 is a wasteful number, since it uses less digits than its factorization.

55977853599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51044 (or 51038 counting only the distinct ones).

The product of its digits is 535815000, while the sum is 72.

The spelling of 55977853599 in words is "fifty-five billion, nine hundred seventy-seven million, eight hundred fifty-three thousand, five hundred ninety-nine".