55230697 has 2 divisors, whose sum is σ = 55230698. Its totient is φ = 55230696.

The previous prime is 55230691. The next prime is 55230709. The reversal of 55230697 is 79603255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55115776 + 114921 = 7424^2 + 339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55230697 is a prime.

It is a super-2 number, since 2×55230697² = 6100859782211618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55230691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27615348 + 27615349.

It is an arithmetic number, because the mean of its divisors is an integer number (27615349).

Almost surely, 2^55230697 is an apocalyptic number.

It is an amenable number.

55230697 is a deficient number, since it is larger than the sum of its proper divisors (1).

55230697 is an equidigital number, since it uses as much as digits as its factorization.

55230697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 55230697 is about 7431.7357999326. The cubic root of 55230697 is about 380.8262193633.

The spelling of 55230697 in words is "fifty-five million, two hundred thirty thousand, six hundred ninety-seven".