2645655475 has 24 divisors (see below), whose sum is σ = 3564692480. Its totient is φ = 1940436000.

The previous prime is 2645655469. The next prime is 2645655487. The reversal of 2645655475 is 5745565462.

It is not a de Polignac number, because 2645655475 - 2⁵ = 2645655443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75111 + ... + 104560.

Almost surely, 2^2645655475 is an apocalyptic number.

2645655475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2645655475 is a deficient number, since it is larger than the sum of its proper divisors (919037005).

2645655475 is a wasteful number, since it uses less digits than its factorization.

2645655475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179731 (or 179726 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 49.

The square root of 2645655475 is about 51435.9356384231. The cubic root of 2645655475 is about 1383.0708543784.

The spelling of 2645655475 in words is "two billion, six hundred forty-five million, six hundred fifty-five thousand, four hundred seventy-five".