56400613533 has 36 divisors (see below), whose sum is σ = 94814480124. Its totient is φ = 32171462400.

The previous prime is 56400613469. The next prime is 56400613553. The reversal of 56400613533 is 33531600465.

56400613533 is a `hidden beast` number, since 5 + 6 + 4 + 0 + 0 + 613 + 5 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21526171524 + 34874442009 = 146718^2 + 186747^2 .

It is not a de Polignac number, because 56400613533 - 2⁶ = 56400613469 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56400613553) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 1504758 + ... + 1541783.

It is an arithmetic number, because the mean of its divisors is an integer number (2633735559).

Almost surely, 2^56400613533 is an apocalyptic number.

It is an amenable number.

56400613533 is a deficient number, since it is larger than the sum of its proper divisors (38413866591).

56400613533 is a wasteful number, since it uses less digits than its factorization.

56400613533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046586 (or 3046572 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 56400613533 in words is "fifty-six billion, four hundred million, six hundred thirteen thousand, five hundred thirty-three".