54520831 has 4 divisors (see below), whose sum is σ = 54619272. Its totient is φ = 54422392.

The previous prime is 54520813. The next prime is 54520859. The reversal of 54520831 is 13802545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13802545 = 5 ⋅2760509.

It is a cyclic number.

It is not a de Polignac number, because 54520831 - 2²³ = 46132223 is a prime.

It is a super-2 number, since 2×54520831² = 5945042025861122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54520831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54520891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48385 + ... + 49498.

It is an arithmetic number, because the mean of its divisors is an integer number (13654818).

Almost surely, 2^54520831 is an apocalyptic number.

54520831 is a deficient number, since it is larger than the sum of its proper divisors (98441).

54520831 is an equidigital number, since it uses as much as digits as its factorization.

54520831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98440.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 54520831 is about 7383.8222486731. The cubic root of 54520831 is about 379.1876250917.

The spelling of 54520831 in words is "fifty-four million, five hundred twenty thousand, eight hundred thirty-one".