55462331 has 2 divisors, whose sum is σ = 55462332. Its totient is φ = 55462330.

The previous prime is 55462283. The next prime is 55462333. The reversal of 55462331 is 13326455.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55462331 is a prime.

It is a super-2 number, since 2×55462331² = 6152140319907122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 55462333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55462294 and 55462303.

It is not a weakly prime, because it can be changed into another prime (55462333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27731165 + 27731166.

It is an arithmetic number, because the mean of its divisors is an integer number (27731166).

Almost surely, 2^55462331 is an apocalyptic number.

55462331 is a deficient number, since it is larger than the sum of its proper divisors (1).

55462331 is an equidigital number, since it uses as much as digits as its factorization.

55462331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 29.

The square root of 55462331 is about 7447.3036060040. The cubic root of 55462331 is about 381.3578637380.

Adding to 55462331 its reverse (13326455), we get a palindrome (68788786).

The spelling of 55462331 in words is "fifty-five million, four hundred sixty-two thousand, three hundred thirty-one".