56405450234 has 32 divisors (see below), whose sum is σ = 99228447360. Its totient is φ = 23546981952.

The previous prime is 56405450221. The next prime is 56405450327. The reversal of 56405450234 is 43205450465.

It is a super-2 number, since 2×56405450234² (a number of 22 digits) contains 22 as substring.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 170309 + ... + 376584.

It is an arithmetic number, because the mean of its divisors is an integer number (3100888980).

Almost surely, 2^56405450234 is an apocalyptic number.

56405450234 is a deficient number, since it is larger than the sum of its proper divisors (42822997126).

56405450234 is a wasteful number, since it uses less digits than its factorization.

56405450234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547094.

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 56405450234 in words is "fifty-six billion, four hundred five million, four hundred fifty thousand, two hundred thirty-four".