2545622064 has 30 divisors (see below), whose sum is σ = 7124206596. Its totient is φ = 848540640.

The previous prime is 2545622047. The next prime is 2545622069. The reversal of 2545622064 is 4602265452.

2545622064 is a `hidden beast` number, since 25 + 4 + 5 + 622 + 0 + 6 + 4 = 666.

2545622064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2545622069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8838822 + ... + 8839109.

Almost surely, 2^2545622064 is an apocalyptic number.

2545622064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2545622064 is an abundant number, since it is smaller than the sum of its proper divisors (4578584532).

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

2545622064 is a wasteful number, since it uses less digits than its factorization.

2545622064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17677945 (or 17677936 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 2545622064 is about 50454.1580447043. The cubic root of 2545622064 is about 1365.4149139189.

The spelling of 2545622064 in words is "two billion, five hundred forty-five million, six hundred twenty-two thousand, sixty-four".