55977955 has 8 divisors (see below), whose sum is σ = 73280304. Its totient is φ = 40711200.

The previous prime is 55977947. The next prime is 55977967.

55977955 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55977955 - 2³ = 55977947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508836 + ... + 508945.

It is an arithmetic number, because the mean of its divisors is an integer number (9160038).

Almost surely, 2^55977955 is an apocalyptic number.

55977955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55977955 is a deficient number, since it is larger than the sum of its proper divisors (17302349).

55977955 is a wasteful number, since it uses less digits than its factorization.

55977955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017797.

The product of its digits is 2480625, while the sum is 52.

The square root of 55977955 is about 7481.8416850399. The cubic root of 55977955 is about 382.5360269083.

The spelling of 55977955 in words is "fifty-five million, nine hundred seventy-seven thousand, nine hundred fifty-five".