2555611015 has 16 divisors (see below), whose sum is σ = 3188793600. Its totient is φ = 1964079360.

The previous prime is 2555611013. The next prime is 2555611063. The reversal of 2555611015 is 5101165552.

It is not a de Polignac number, because 2555611015 - 2¹ = 2555611013 is a prime.

It is a super-2 number, since 2×2555611015² = 13062295319978660450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555611013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38940 + ... + 81409.

It is an arithmetic number, because the mean of its divisors is an integer number (199299600).

Almost surely, 2^2555611015 is an apocalyptic number.

2555611015 is a deficient number, since it is larger than the sum of its proper divisors (633182585).

2555611015 is a wasteful number, since it uses less digits than its factorization.

2555611015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120522.

The product of its (nonzero) digits is 7500, while the sum is 31.

The square root of 2555611015 is about 50553.0514904887. The cubic root of 2555611015 is about 1367.1985331873.

Adding to 2555611015 its reverse (5101165552), we get a palindrome (7656776567).

The spelling of 2555611015 in words is "two billion, five hundred fifty-five million, six hundred eleven thousand, fifteen".