55976477 has 4 divisors (see below), whose sum is σ = 56685120. Its totient is φ = 55267836.

The previous prime is 55976443. The next prime is 55976491. The reversal of 55976477 is 77467955.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55976477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55976407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354203 + ... + 354360.

It is an arithmetic number, because the mean of its divisors is an integer number (14171280).

Almost surely, 2^55976477 is an apocalyptic number.

It is an amenable number.

55976477 is a deficient number, since it is larger than the sum of its proper divisors (708643).

55976477 is an equidigital number, since it uses as much as digits as its factorization.

55976477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708642.

The product of its digits is 1852200, while the sum is 50.

The square root of 55976477 is about 7481.7429119156. The cubic root of 55976477 is about 382.5326601471.

The spelling of 55976477 in words is "fifty-five million, nine hundred seventy-six thousand, four hundred seventy-seven".