55376977 has 2 divisors, whose sum is σ = 55376978. Its totient is φ = 55376976.

The previous prime is 55376929. The next prime is 55376983. The reversal of 55376977 is 77967355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54774801 + 602176 = 7401^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 55376977 - 2¹⁹ = 54852689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55376977.

It is not a weakly prime, because it can be changed into another prime (55376917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27688488 + 27688489.

It is an arithmetic number, because the mean of its divisors is an integer number (27688489).

Almost surely, 2^55376977 is an apocalyptic number.

It is an amenable number.

55376977 is a deficient number, since it is larger than the sum of its proper divisors (1).

55376977 is an equidigital number, since it uses as much as digits as its factorization.

55376977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1389150, while the sum is 49.

The square root of 55376977 is about 7441.5708691109. The cubic root of 55376977 is about 381.1621325052.

The spelling of 55376977 in words is "fifty-five million, three hundred seventy-six thousand, nine hundred seventy-seven".