54457687 has 2 divisors, whose sum is σ = 54457688. Its totient is φ = 54457686.

The previous prime is 54457633. The next prime is 54457699. The reversal of 54457687 is 78675445.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54457687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54457387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27228843 + 27228844.

It is an arithmetic number, because the mean of its divisors is an integer number (27228844).

Almost surely, 2^54457687 is an apocalyptic number.

54457687 is a deficient number, since it is larger than the sum of its proper divisors (1).

54457687 is an equidigital number, since it uses as much as digits as its factorization.

54457687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940800, while the sum is 46.

The square root of 54457687 is about 7379.5451756866. The cubic root of 54457687 is about 379.0411815375.

The spelling of 54457687 in words is "fifty-four million, four hundred fifty-seven thousand, six hundred eighty-seven".