54664787 has 2 divisors, whose sum is σ = 54664788. Its totient is φ = 54664786.

The previous prime is 54664763. The next prime is 54664789. The reversal of 54664787 is 78746645.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54664787 - 2¹² = 54660691 is a prime.

Together with 54664789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54664789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27332393 + 27332394.

It is an arithmetic number, because the mean of its divisors is an integer number (27332394).

Almost surely, 2^54664787 is an apocalyptic number.

54664787 is a deficient number, since it is larger than the sum of its proper divisors (1).

54664787 is an equidigital number, since it uses as much as digits as its factorization.

54664787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 47.

The square root of 54664787 is about 7393.5638903035. The cubic root of 54664787 is about 379.5210656019.

The spelling of 54664787 in words is "fifty-four million, six hundred sixty-four thousand, seven hundred eighty-seven".