55564727 has 2 divisors, whose sum is σ = 55564728. Its totient is φ = 55564726.

The previous prime is 55564709. The next prime is 55564739. The reversal of 55564727 is 72746555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55564727 - 2²⁰ = 54516151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55564627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27782363 + 27782364.

It is an arithmetic number, because the mean of its divisors is an integer number (27782364).

Almost surely, 2^55564727 is an apocalyptic number.

55564727 is a deficient number, since it is larger than the sum of its proper divisors (1).

55564727 is an equidigital number, since it uses as much as digits as its factorization.

55564727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294000, while the sum is 41.

The square root of 55564727 is about 7454.1751388064. The cubic root of 55564727 is about 381.5924103953.

The spelling of 55564727 in words is "fifty-five million, five hundred sixty-four thousand, seven hundred twenty-seven".