55973263 has 2 divisors, whose sum is σ = 55973264. Its totient is φ = 55973262.

The previous prime is 55973249. The next prime is 55973293. The reversal of 55973263 is 36237955.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55973263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55973243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27986631 + 27986632.

It is an arithmetic number, because the mean of its divisors is an integer number (27986632).

Almost surely, 2^55973263 is an apocalyptic number.

55973263 is a deficient number, since it is larger than the sum of its proper divisors (1).

55973263 is an equidigital number, since it uses as much as digits as its factorization.

55973263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 40.

The square root of 55973263 is about 7481.5281193082. The cubic root of 55973263 is about 382.5253387175.

The spelling of 55973263 in words is "fifty-five million, nine hundred seventy-three thousand, two hundred sixty-three".