2564466475 has 12 divisors (see below), whose sum is σ = 3282518080. Its totient is φ = 1985392800.

The previous prime is 2564466469. The next prime is 2564466493. The reversal of 2564466475 is 5746644652.

It is a de Polignac number, because none of the positive numbers 2^k-2564466475 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1653720 + ... + 1655269.

Almost surely, 2^2564466475 is an apocalyptic number.

2564466475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2564466475 is a deficient number, since it is larger than the sum of its proper divisors (718051605).

2564466475 is a wasteful number, since it uses less digits than its factorization.

2564466475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309030 (or 3309025 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 49.

The square root of 2564466475 is about 50640.5615588927. The cubic root of 2564466475 is about 1368.7758747706.

The spelling of 2564466475 in words is "two billion, five hundred sixty-four million, four hundred sixty-six thousand, four hundred seventy-five".