2563666254 has 32 divisors (see below), whose sum is σ = 5700900000. Its totient is φ = 853975872.

The previous prime is 2563666213. The next prime is 2563666267. The reversal of 2563666254 is 4526663652.

2563666254 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68322 + ... + 98970.

It is an arithmetic number, because the mean of its divisors is an integer number (178153125).

Almost surely, 2^2563666254 is an apocalyptic number.

2563666254 is an abundant number, since it is smaller than the sum of its proper divisors (3137233746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2563666254 is a wasteful number, since it uses less digits than its factorization.

2563666254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32209 (or 32203 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The square root of 2563666254 is about 50632.6599538282. The cubic root of 2563666254 is about 1368.6334881496.

The spelling of 2563666254 in words is "two billion, five hundred sixty-three million, six hundred sixty-six thousand, two hundred fifty-four".