2555533977605 has 48 divisors (see below), whose sum is σ = 3842397852480. Its totient is φ = 1621528409088.

The previous prime is 2555533977587. The next prime is 2555533977617. The reversal of 2555533977605 is 5067793355552.

It is a happy number.

It is not a de Polignac number, because 2555533977605 - 2⁸ = 2555533977349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6183404 + ... + 6583733.

It is an arithmetic number, because the mean of its divisors is an integer number (80049955260).

Almost surely, 2^{2555533977605} is an apocalyptic number.

It is an amenable number.

2555533977605 is a deficient number, since it is larger than the sum of its proper divisors (1286863874875).

2555533977605 is a wasteful number, since it uses less digits than its factorization.

2555533977605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12767218 (or 12767211 counting only the distinct ones).

The product of its (nonzero) digits is 148837500, while the sum is 62.

The spelling of 2555533977605 in words is "two trillion, five hundred fifty-five billion, five hundred thirty-three million, nine hundred seventy-seven thousand, six hundred five".