2555493362591 has 32 divisors (see below), whose sum is σ = 2954195435520. Its totient is φ = 2192563094400.

The previous prime is 2555493362579. The next prime is 2555493362599. The reversal of 2555493362591 is 1952633945552.

It is a cyclic number.

It is not a de Polignac number, because 2555493362591 - 2¹⁰ = 2555493361567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2555493362591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555493362599) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1659806 + ... + 2804628.

It is an arithmetic number, because the mean of its divisors is an integer number (92318607360).

Almost surely, 2^{2555493362591} is an apocalyptic number.

2555493362591 is a deficient number, since it is larger than the sum of its proper divisors (398702072929).

2555493362591 is a wasteful number, since it uses less digits than its factorization.

2555493362591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145087.

The product of its digits is 43740000, while the sum is 59.

The spelling of 2555493362591 in words is "two trillion, five hundred fifty-five billion, four hundred ninety-three million, three hundred sixty-two thousand, five hundred ninety-one".