64553455231 has 2 divisors, whose sum is σ = 64553455232. Its totient is φ = 64553455230.

The previous prime is 64553455229. The next prime is 64553455249. The reversal of 64553455231 is 13255435546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64553455231 - 2¹ = 64553455229 is a prime.

It is a super-2 number, since 2×64553455231² (a number of 22 digits) contains 22 as substring.

Together with 64553455229, 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 (64553455201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32276727615 + 32276727616.

It is an arithmetic number, because the mean of its divisors is an integer number (32276727616).

Almost surely, 2^64553455231 is an apocalyptic number.

64553455231 is a deficient number, since it is larger than the sum of its proper divisors (1).

64553455231 is an equidigital number, since it uses as much as digits as its factorization.

64553455231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080000, while the sum is 43.

The spelling of 64553455231 in words is "sixty-four billion, five hundred fifty-three million, four hundred fifty-five thousand, two hundred thirty-one".