56243815629 has 4 divisors (see below), whose sum is σ = 74991754176. Its totient is φ = 37495877084.

The previous prime is 56243815603. The next prime is 56243815721. The reversal of 56243815629 is 92651834265.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56243815629 - 2⁷ = 56243815501 is a prime.

It is a super-3 number, since 3×56243815629³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56243810629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9373969269 + ... + 9373969274.

It is an arithmetic number, because the mean of its divisors is an integer number (18747938544).

Almost surely, 2^56243815629 is an apocalyptic number.

It is an amenable number.

56243815629 is a deficient number, since it is larger than the sum of its proper divisors (18747938547).

56243815629 is a wasteful number, since it uses less digits than its factorization.

56243815629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18747938546.

The product of its digits is 3110400, while the sum is 51.

The spelling of 56243815629 in words is "fifty-six billion, two hundred forty-three million, eight hundred fifteen thousand, six hundred twenty-nine".