55497713 has 2 divisors, whose sum is σ = 55497714. Its totient is φ = 55497712.

The previous prime is 55497709. The next prime is 55497749. The reversal of 55497713 is 31779455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54346384 + 1151329 = 7372^2 + 1073^2 .

It is a cyclic number.

It is not a de Polignac number, because 55497713 - 2² = 55497709 is a prime.

It is a super-2 number, since 2×55497713² = 6159992296460738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55497703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27748856 + 27748857.

It is an arithmetic number, because the mean of its divisors is an integer number (27748857).

Almost surely, 2^55497713 is an apocalyptic number.

It is an amenable number.

55497713 is a deficient number, since it is larger than the sum of its proper divisors (1).

55497713 is an equidigital number, since it uses as much as digits as its factorization.

55497713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 41.

The square root of 55497713 is about 7449.6787179046. The cubic root of 55497713 is about 381.4389418042.

The spelling of 55497713 in words is "fifty-five million, four hundred ninety-seven thousand, seven hundred thirteen".