55814831 has 2 divisors, whose sum is σ = 55814832. Its totient is φ = 55814830.

The previous prime is 55814809. The next prime is 55814873. The reversal of 55814831 is 13841855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55814831 - 2¹⁸ = 55552687 is a prime.

It is a super-2 number, since 2×55814831² = 6230590719117122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_3327956 and since 55814831 and 3327956 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 55814791 and 55814800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55819831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27907415 + 27907416.

It is an arithmetic number, because the mean of its divisors is an integer number (27907416).

Almost surely, 2^55814831 is an apocalyptic number.

55814831 is a deficient number, since it is larger than the sum of its proper divisors (1).

55814831 is an equidigital number, since it uses as much as digits as its factorization.

55814831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 35.

The square root of 55814831 is about 7470.9324049947. The cubic root of 55814831 is about 382.1640857353.

The spelling of 55814831 in words is "fifty-five million, eight hundred fourteen thousand, eight hundred thirty-one".