2564338455 has 48 divisors (see below), whose sum is σ = 5083401024. Its totient is φ = 1171445760.

The previous prime is 2564338451. The next prime is 2564338489. The reversal of 2564338455 is 5548334652.

2564338455 is a `hidden beast` number, since 2 + 564 + 3 + 3 + 84 + 5 + 5 = 666.

2564338455 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 not a de Polignac number, because 2564338455 - 2² = 2564338451 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2564338455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564338451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 841735 + ... + 844775.

It is an arithmetic number, because the mean of its divisors is an integer number (105904188).

Almost surely, 2^2564338455 is an apocalyptic number.

2564338455 is a deficient number, since it is larger than the sum of its proper divisors (2519062569).

2564338455 is a wasteful number, since it uses less digits than its factorization.

2564338455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736 (or 5733 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The square root of 2564338455 is about 50639.2975365970. The cubic root of 2564338455 is about 1368.7530976348.

The spelling of 2564338455 in words is "two billion, five hundred sixty-four million, three hundred thirty-eight thousand, four hundred fifty-five".