56387189450 has 24 divisors (see below), whose sum is σ = 104976406080. Its totient is φ = 22534180400.

The previous prime is 56387189431. The next prime is 56387189477. The reversal of 56387189450 is 5498178365.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 462290 + ... + 571389.

It is an arithmetic number, because the mean of its divisors is an integer number (4374016920).

Almost surely, 2^56387189450 is an apocalyptic number.

56387189450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56387189450 is a deficient number, since it is larger than the sum of its proper divisors (48589216630).

56387189450 is a wasteful number, since it uses less digits than its factorization.

56387189450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034782 (or 1034777 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 56387189450 in words is "fifty-six billion, three hundred eighty-seven million, one hundred eighty-nine thousand, four hundred fifty".