55668253 has 2 divisors, whose sum is σ = 55668254. Its totient is φ = 55668252.

The previous prime is 55668241. The next prime is 55668259. The reversal of 55668253 is 35286655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55086084 + 582169 = 7422^2 + 763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55668253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55668259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27834126 + 27834127.

It is an arithmetic number, because the mean of its divisors is an integer number (27834127).

Almost surely, 2^55668253 is an apocalyptic number.

It is an amenable number.

55668253 is a deficient number, since it is larger than the sum of its proper divisors (1).

55668253 is an equidigital number, since it uses as much as digits as its factorization.

55668253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 40.

The square root of 55668253 is about 7461.1160693290. The cubic root of 55668253 is about 381.8292526560.

The spelling of 55668253 in words is "fifty-five million, six hundred sixty-eight thousand, two hundred fifty-three".