54431657 has 8 divisors (see below), whose sum is σ = 62779200. Its totient is φ = 46227024.

The previous prime is 54431651. The next prime is 54431677. The reversal of 54431657 is 75613445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54431657 - 2¹² = 54427561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54431651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34907 + ... + 36432.

It is an arithmetic number, because the mean of its divisors is an integer number (7847400).

Almost surely, 2^54431657 is an apocalyptic number.

It is an amenable number.

54431657 is a deficient number, since it is larger than the sum of its proper divisors (8347543).

54431657 is a wasteful number, since it uses less digits than its factorization.

54431657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71455.

The product of its digits is 50400, while the sum is 35.

The square root of 54431657 is about 7377.7813060567. The cubic root of 54431657 is about 378.9807798144.

The spelling of 54431657 in words is "fifty-four million, four hundred thirty-one thousand, six hundred fifty-seven".