55590377 has 2 divisors, whose sum is σ = 55590378. Its totient is φ = 55590376.

The previous prime is 55590343. The next prime is 55590389. The reversal of 55590377 is 77309555.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55413136 + 177241 = 7444^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 55590377 - 2⁸ = 55590121 is a prime.

It is not a weakly prime, because it can be changed into another prime (55590307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27795188 + 27795189.

It is an arithmetic number, because the mean of its divisors is an integer number (27795189).

Almost surely, 2^55590377 is an apocalyptic number.

It is an amenable number.

55590377 is a deficient number, since it is larger than the sum of its proper divisors (1).

55590377 is an equidigital number, since it uses as much as digits as its factorization.

55590377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165375, while the sum is 41.

The square root of 55590377 is about 7455.8954525932. The cubic root of 55590377 is about 381.6511187410.

The spelling of 55590377 in words is "fifty-five million, five hundred ninety thousand, three hundred seventy-seven".