54662591 has 2 divisors, whose sum is σ = 54662592. Its totient is φ = 54662590.

The previous prime is 54662567. The next prime is 54662603. The reversal of 54662591 is 19526645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54662591 - 2¹⁸ = 54400447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54662521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27331295 + 27331296.

It is an arithmetic number, because the mean of its divisors is an integer number (27331296).

Almost surely, 2^54662591 is an apocalyptic number.

54662591 is a deficient number, since it is larger than the sum of its proper divisors (1).

54662591 is an equidigital number, since it uses as much as digits as its factorization.

54662591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 54662591 is about 7393.4153812700. The cubic root of 54662591 is about 379.5159834795.

The spelling of 54662591 in words is "fifty-four million, six hundred sixty-two thousand, five hundred ninety-one".