55745293231 has 2 divisors, whose sum is σ = 55745293232. Its totient is φ = 55745293230.

The previous prime is 55745293229. The next prime is 55745293271. The reversal of 55745293231 is 13239254755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55745293231 - 2¹ = 55745293229 is a prime.

It is a super-2 number, since 2×55745293231² (a number of 22 digits) contains 22 as substring.

Together with 55745293229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55745293271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27872646615 + 27872646616.

It is an arithmetic number, because the mean of its divisors is an integer number (27872646616).

Almost surely, 2^55745293231 is an apocalyptic number.

55745293231 is a deficient number, since it is larger than the sum of its proper divisors (1).

55745293231 is an equidigital number, since it uses as much as digits as its factorization.

55745293231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134000, while the sum is 46.

The spelling of 55745293231 in words is "fifty-five billion, seven hundred forty-five million, two hundred ninety-three thousand, two hundred thirty-one".