54656663 has 2 divisors, whose sum is σ = 54656664. Its totient is φ = 54656662.

The previous prime is 54656653. The next prime is 54656669. The reversal of 54656663 is 36665645.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54656663 - 2⁶ = 54656599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54656663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54656669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27328331 + 27328332.

It is an arithmetic number, because the mean of its divisors is an integer number (27328332).

Almost surely, 2^54656663 is an apocalyptic number.

54656663 is a deficient number, since it is larger than the sum of its proper divisors (1).

54656663 is an equidigital number, since it uses as much as digits as its factorization.

54656663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 41.

The square root of 54656663 is about 7393.0144731361. The cubic root of 54656663 is about 379.5022638464.

The spelling of 54656663 in words is "fifty-four million, six hundred fifty-six thousand, six hundred sixty-three".