55028713 has 2 divisors, whose sum is σ = 55028714. Its totient is φ = 55028712.

The previous prime is 55028669. The next prime is 55028749. The reversal of 55028713 is 31782055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34715664 + 20313049 = 5892^2 + 4507^2 .

It is a cyclic number.

It is not a de Polignac number, because 55028713 - 2²¹ = 52931561 is a prime.

It is not a weakly prime, because it can be changed into another prime (55098713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27514356 + 27514357.

It is an arithmetic number, because the mean of its divisors is an integer number (27514357).

Almost surely, 2^55028713 is an apocalyptic number.

It is an amenable number.

55028713 is a deficient number, since it is larger than the sum of its proper divisors (1).

55028713 is an equidigital number, since it uses as much as digits as its factorization.

55028713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 55028713 is about 7418.1340645745. The cubic root of 55028713 is about 380.3614128505.

The spelling of 55028713 in words is "fifty-five million, twenty-eight thousand, seven hundred thirteen".