54351657 has 6 divisors (see below), whose sum is σ = 78507962. Its totient is φ = 36234432.

The previous prime is 54351643. The next prime is 54351667. The reversal of 54351657 is 75615345.

54351657 is a `hidden beast` number, since 543 + 51 + 65 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50466816 + 3884841 = 7104^2 + 1971^2 .

It is not a de Polignac number, because 54351657 - 2⁶ = 54351593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54351607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3019528 + ... + 3019545.

Almost surely, 2^54351657 is an apocalyptic number.

It is an amenable number.

54351657 is a deficient number, since it is larger than the sum of its proper divisors (24156305).

54351657 is a wasteful number, since it uses less digits than its factorization.

54351657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6039079 (or 6039076 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 54351657 is about 7372.3576283303. The cubic root of 54351657 is about 378.7950219329.

The spelling of 54351657 in words is "fifty-four million, three hundred fifty-one thousand, six hundred fifty-seven".