55913369 has 2 divisors, whose sum is σ = 55913370. Its totient is φ = 55913368.

The previous prime is 55913359. The next prime is 55913383. The reversal of 55913369 is 96331955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54567769 + 1345600 = 7387^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 55913369 - 2⁸ = 55913113 is a prime.

It is a super-2 number, since 2×55913369² = 6252609665860322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55913359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27956684 + 27956685.

It is an arithmetic number, because the mean of its divisors is an integer number (27956685).

Almost surely, 2^55913369 is an apocalyptic number.

It is an amenable number.

55913369 is a deficient number, since it is larger than the sum of its proper divisors (1).

55913369 is an equidigital number, since it uses as much as digits as its factorization.

55913369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109350, while the sum is 41.

The square root of 55913369 is about 7477.5242560623. The cubic root of 55913369 is about 382.3888500430.

The spelling of 55913369 in words is "fifty-five million, nine hundred thirteen thousand, three hundred sixty-nine".