255504061091 has 2 divisors, whose sum is σ = 255504061092. Its totient is φ = 255504061090.

The previous prime is 255504061069. The next prime is 255504061133. The reversal of 255504061091 is 190160405552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255504061091 is a prime.

It is a super-2 number, since 2×255504061091² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255504061291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127752030545 + 127752030546.

It is an arithmetic number, because the mean of its divisors is an integer number (127752030546).

Almost surely, 2^255504061091 is an apocalyptic number.

255504061091 is a deficient number, since it is larger than the sum of its proper divisors (1).

255504061091 is an equidigital number, since it uses as much as digits as its factorization.

255504061091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 255504061091 in words is "two hundred fifty-five billion, five hundred four million, sixty-one thousand, ninety-one".