55437587567 has 2 divisors, whose sum is σ = 55437587568. Its totient is φ = 55437587566.

The previous prime is 55437587561. The next prime is 55437587749. The reversal of 55437587567 is 76578573455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55437587567 - 2⁸ = 55437587311 is a prime.

It is a super-3 number, since 3×55437587567³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55437587561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27718793783 + 27718793784.

It is an arithmetic number, because the mean of its divisors is an integer number (27718793784).

Almost surely, 2^55437587567 is an apocalyptic number.

55437587567 is a deficient number, since it is larger than the sum of its proper divisors (1).

55437587567 is an equidigital number, since it uses as much as digits as its factorization.

55437587567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480000, while the sum is 62.

The spelling of 55437587567 in words is "fifty-five billion, four hundred thirty-seven million, five hundred eighty-seven thousand, five hundred sixty-seven".