55366697 has 2 divisors, whose sum is σ = 55366698. Its totient is φ = 55366696.

The previous prime is 55366693. The next prime is 55366709. The reversal of 55366697 is 79666355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53304601 + 2062096 = 7301^2 + 1436^2 .

It is a cyclic number.

It is not a de Polignac number, because 55366697 - 2² = 55366693 is a prime.

It is a super-2 number, since 2×55366697² = 6130942273379618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55366693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27683348 + 27683349.

It is an arithmetic number, because the mean of its divisors is an integer number (27683349).

Almost surely, 2^55366697 is an apocalyptic number.

It is an amenable number.

55366697 is a deficient number, since it is larger than the sum of its proper divisors (1).

55366697 is an equidigital number, since it uses as much as digits as its factorization.

55366697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 47.

The square root of 55366697 is about 7440.8801226737. The cubic root of 55366697 is about 381.1385451504.

The spelling of 55366697 in words is "fifty-five million, three hundred sixty-six thousand, six hundred ninety-seven".