2555961377 has 16 divisors (see below), whose sum is σ = 2804305920. Its totient is φ = 2320520400.

The previous prime is 2555961367. The next prime is 2555961403. The reversal of 2555961377 is 7731695552.

It is a cyclic number.

It is not a de Polignac number, because 2555961377 - 2³⁰ = 1482219553 is a prime.

It is a super-2 number, since 2×2555961377² = 13065877121431472258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555961367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39602 + ... + 81732.

It is an arithmetic number, because the mean of its divisors is an integer number (175269120).

Almost surely, 2^2555961377 is an apocalyptic number.

It is an amenable number.

2555961377 is a deficient number, since it is larger than the sum of its proper divisors (248344543).

2555961377 is a wasteful number, since it uses less digits than its factorization.

2555961377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42284.

The product of its digits is 1984500, while the sum is 50.

The square root of 2555961377 is about 50556.5166620486. The cubic root of 2555961377 is about 1367.2610091172.

The spelling of 2555961377 in words is "two billion, five hundred fifty-five million, nine hundred sixty-one thousand, three hundred seventy-seven".