55486377 has 20 divisors (see below), whose sum is σ = 83257680. Its totient is φ = 36977796.

The previous prime is 55486339. The next prime is 55486391. The reversal of 55486377 is 77368455.

55486377 is a `hidden beast` number, since 5 + 5 + 4 + 8 + 637 + 7 = 666.

It is not a de Polignac number, because 55486377 - 2⁶ = 55486313 is a prime.

It is a super-2 number, since 2×55486377² = 6157476065172258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55486397) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18274 + ... + 21092.

It is an arithmetic number, because the mean of its divisors is an integer number (4162884).

Almost surely, 2^55486377 is an apocalyptic number.

It is an amenable number.

55486377 is a deficient number, since it is larger than the sum of its proper divisors (27771303).

55486377 is an frugal number, since it uses more digits than its factorization.

55486377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846 (or 2822 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 55486377 is about 7448.9178408679. The cubic root of 55486377 is about 381.4129690446.

The spelling of 55486377 in words is "fifty-five million, four hundred eighty-six thousand, three hundred seventy-seven".