54807831 has 24 divisors (see below), whose sum is σ = 85765680. Its totient is φ = 33526656.

The previous prime is 54807821. The next prime is 54807859. The reversal of 54807831 is 13870845.

It is not a de Polignac number, because 54807831 - 2⁷ = 54807703 is a prime.

It is a super-2 number, since 2×54807831² = 6007796677849122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54807821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19635 + ... + 22251.

It is an arithmetic number, because the mean of its divisors is an integer number (3573570).

Almost surely, 2^54807831 is an apocalyptic number.

54807831 is a deficient number, since it is larger than the sum of its proper divisors (30957849).

54807831 is a wasteful number, since it uses less digits than its factorization.

54807831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815 (or 2812 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 54807831 is about 7403.2311189102. The cubic root of 54807831 is about 379.8518143352.

The spelling of 54807831 in words is "fifty-four million, eight hundred seven thousand, eight hundred thirty-one".