55313737 has 2 divisors, whose sum is σ = 55313738. Its totient is φ = 55313736.

The previous prime is 55313723. The next prime is 55313747. The reversal of 55313737 is 73731355.

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., 43349056 + 11964681 = 6584^2 + 3459^2 .

It is a cyclic number.

It is not a de Polignac number, because 55313737 - 2¹⁵ = 55280969 is a prime.

It is equal to p_3299830 and since 55313737 and 3299830 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55313747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27656868 + 27656869.

It is an arithmetic number, because the mean of its divisors is an integer number (27656869).

Almost surely, 2^55313737 is an apocalyptic number.

It is an amenable number.

55313737 is a deficient number, since it is larger than the sum of its proper divisors (1).

55313737 is an equidigital number, since it uses as much as digits as its factorization.

55313737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33075, while the sum is 34.

The square root of 55313737 is about 7437.3205524570. The cubic root of 55313737 is about 381.0169826844.

The spelling of 55313737 in words is "fifty-five million, three hundred thirteen thousand, seven hundred thirty-seven".