5256694400 has 48 divisors (see below), whose sum is σ = 12985685790. Its totient is φ = 2102676480.

The previous prime is 5256694393. The next prime is 5256694411. The reversal of 5256694400 is 44966525.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4185572416 + 1071121984 = 64696^2 + 32728^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 818159 + ... + 824558.

Almost surely, 2^5256694400 is an apocalyptic number.

5256694400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5256694400 is an abundant number, since it is smaller than the sum of its proper divisors (7728991390).

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

5256694400 is a wasteful number, since it uses less digits than its factorization.

5256694400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642741 (or 1642724 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 5256694400 is about 72503.0647628085. The cubic root of 5256694400 is about 1738.7517360654.

The spelling of 5256694400 in words is "five billion, two hundred fifty-six million, six hundred ninety-four thousand, four hundred".