54431697 has 8 divisors (see below), whose sum is σ = 72893440. Its totient is φ = 36128880.

The previous prime is 54431693. The next prime is 54431701. The reversal of 54431697 is 79613445.

It is an interprime number because it is at equal distance from previous prime (54431693) and next prime (54431701).

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

It is not a de Polignac number, because 54431697 - 2² = 54431693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54431693) 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, 38929 + ... + 40302.

It is an arithmetic number, because the mean of its divisors is an integer number (9111680).

Almost surely, 2^54431697 is an apocalyptic number.

It is an amenable number.

54431697 is a deficient number, since it is larger than the sum of its proper divisors (18461743).

54431697 is a wasteful number, since it uses less digits than its factorization.

54431697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79463.

The product of its digits is 90720, while the sum is 39.

The square root of 54431697 is about 7377.7840168983. The cubic root of 54431697 is about 378.9808726478.

It can be divided in two parts, 5443 and 1697, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 54431697 in words is "fifty-four million, four hundred thirty-one thousand, six hundred ninety-seven".