56503469400 has 192 divisors, whose sum is σ = 205066874880. Its totient is φ = 12600038400.

The previous prime is 56503469327. The next prime is 56503469443. The reversal of 56503469400 is 496430565.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8137 + ... + 336263.

It is an arithmetic number, because the mean of its divisors is an integer number (1068056640).

Almost surely, 2^56503469400 is an apocalyptic number.

56503469400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56503469400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102533437440).

56503469400 is an abundant number, since it is smaller than the sum of its proper divisors (148563405480).

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

56503469400 is a wasteful number, since it uses less digits than its factorization.

56503469400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328194 (or 328185 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 56503469400 its reverse (496430565), we get a palindrome (56999899965).

The spelling of 56503469400 in words is "fifty-six billion, five hundred three million, four hundred sixty-nine thousand, four hundred".