2561465510 has 16 divisors (see below), whose sum is σ = 4653729936. Its totient is φ = 1015010208.

The previous prime is 2561465453. The next prime is 2561465521. The reversal of 2561465510 is 155641652.

2561465510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2561465510² = 13122211117839120200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195877 + ... + 1198016.

It is an arithmetic number, because the mean of its divisors is an integer number (290858121).

Almost surely, 2^2561465510 is an apocalyptic number.

2561465510 is a deficient number, since it is larger than the sum of its proper divisors (2092264426).

2561465510 is a wasteful number, since it uses less digits than its factorization.

2561465510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394007.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2561465510 is about 50610.9228329221. The cubic root of 2561465510 is about 1368.2417478419.

The spelling of 2561465510 in words is "two billion, five hundred sixty-one million, four hundred sixty-five thousand, five hundred ten".