2564325426 has 32 divisors (see below), whose sum is σ = 5537141568. Its totient is φ = 787026240.

The previous prime is 2564325409. The next prime is 2564325457. The reversal of 2564325426 is 6245234652.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10440 + ... + 72371.

It is an arithmetic number, because the mean of its divisors is an integer number (173035674).

Almost surely, 2^2564325426 is an apocalyptic number.

2564325426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2564325426 is an abundant number, since it is smaller than the sum of its proper divisors (2972816142).

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

2564325426 is a wasteful number, since it uses less digits than its factorization.

2564325426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83226.

The product of its digits is 345600, while the sum is 39.

The square root of 2564325426 is about 50639.1688912841. The cubic root of 2564325426 is about 1368.7507794912.

The spelling of 2564325426 in words is "two billion, five hundred sixty-four million, three hundred twenty-five thousand, four hundred twenty-six".