55577101 has 2 divisors, whose sum is σ = 55577102. Its totient is φ = 55577100.

The previous prime is 55577089. The next prime is 55577111. The reversal of 55577101 is 10177555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50424201 + 5152900 = 7101^2 + 2270^2 .

It is a cyclic number.

It is not a de Polignac number, because 55577101 - 2¹⁹ = 55052813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55577111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27788550 + 27788551.

It is an arithmetic number, because the mean of its divisors is an integer number (27788551).

Almost surely, 2^55577101 is an apocalyptic number.

It is an amenable number.

55577101 is a deficient number, since it is larger than the sum of its proper divisors (1).

55577101 is an equidigital number, since it uses as much as digits as its factorization.

55577101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6125, while the sum is 31.

The square root of 55577101 is about 7455.0050972484. The cubic root of 55577101 is about 381.6207345635.

The spelling of 55577101 in words is "fifty-five million, five hundred seventy-seven thousand, one hundred one".