54918731 has 8 divisors (see below), whose sum is σ = 62843904. Its totient is φ = 47013480.

The previous prime is 54918719. The next prime is 54918769. The reversal of 54918731 is 13781945.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54918731 is a prime.

It is a super-2 number, since 2×54918731² = 6032134029300722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54918931) 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, 1496 + ... + 10586.

It is an arithmetic number, because the mean of its divisors is an integer number (7855488).

Almost surely, 2^54918731 is an apocalyptic number.

54918731 is a deficient number, since it is larger than the sum of its proper divisors (7925173).

54918731 is an equidigital number, since it uses as much as digits as its factorization.

54918731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9961.

The product of its digits is 30240, while the sum is 38.

The square root of 54918731 is about 7410.7173067119. The cubic root of 54918731 is about 380.1078433526.

The spelling of 54918731 in words is "fifty-four million, nine hundred eighteen thousand, seven hundred thirty-one".