56203297920 has 1152 divisors, whose sum is σ = 252613183680. Its totient is φ = 11379916800.

The previous prime is 56203297901. The next prime is 56203297991. The reversal of 56203297920 is 2979230265.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a super-3 number, since 3×56203297920³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 133499310 + ... + 133499730.

Almost surely, 2^56203297920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56203297920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126306591840).

56203297920 is an abundant number, since it is smaller than the sum of its proper divisors (196409885760).

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

56203297920 is a wasteful number, since it uses less digits than its factorization.

56203297920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 56203297920 in words is "fifty-six billion, two hundred three million, two hundred ninety-seven thousand, nine hundred twenty".