55742662977 has 8 divisors (see below), whose sum is σ = 74491325664. Its totient is φ = 37077887808.

The previous prime is 55742662951. The next prime is 55742662993. The reversal of 55742662977 is 77926624755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55742662977 - 2⁷ = 55742662849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55742662977.

It is not an unprimeable number, because it can be changed into a prime (55742662477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20970328 + ... + 20972985.

It is an arithmetic number, because the mean of its divisors is an integer number (9311415708).

Almost surely, 2^55742662977 is an apocalyptic number.

It is an amenable number.

55742662977 is a deficient number, since it is larger than the sum of its proper divisors (18748662687).

55742662977 is a wasteful number, since it uses less digits than its factorization.

55742662977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41943759.

The product of its digits is 44452800, while the sum is 60.

The spelling of 55742662977 in words is "fifty-five billion, seven hundred forty-two million, six hundred sixty-two thousand, nine hundred seventy-seven".