54917731 has 16 divisors (see below), whose sum is σ = 62599680. Its totient is φ = 47731680.

The previous prime is 54917729. The next prime is 54917741. The reversal of 54917731 is 13771945.

It is a cyclic number.

It is not a de Polignac number, because 54917731 - 2¹ = 54917729 is a prime.

It is a super-2 number, since 2×54917731² = 6031914356376722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (54917741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22870 + ... + 25156.

It is an arithmetic number, because the mean of its divisors is an integer number (3912480).

Almost surely, 2^54917731 is an apocalyptic number.

54917731 is a deficient number, since it is larger than the sum of its proper divisors (7681949).

54917731 is a wasteful number, since it uses less digits than its factorization.

54917731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394.

The product of its digits is 26460, while the sum is 37.

The square root of 54917731 is about 7410.6498365528. The cubic root of 54917731 is about 380.1055362457.

The spelling of 54917731 in words is "fifty-four million, nine hundred seventeen thousand, seven hundred thirty-one".