55637232331 has 2 divisors, whose sum is σ = 55637232332. Its totient is φ = 55637232330.

The previous prime is 55637232311. The next prime is 55637232359. The reversal of 55637232331 is 13323273655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55637232331 - 2¹⁷ = 55637101259 is a prime.

It is a super-2 number, since 2×55637232331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55637232311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27818616165 + 27818616166.

It is an arithmetic number, because the mean of its divisors is an integer number (27818616166).

Almost surely, 2^55637232331 is an apocalyptic number.

55637232331 is a deficient number, since it is larger than the sum of its proper divisors (1).

55637232331 is an equidigital number, since it uses as much as digits as its factorization.

55637232331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 40.

The spelling of 55637232331 in words is "fifty-five billion, six hundred thirty-seven million, two hundred thirty-two thousand, three hundred thirty-one".