193232972550 has 96 divisors (see below), whose sum is σ = 521834457600. Its totient is φ = 47133394560.

The previous prime is 193232972477. The next prime is 193232972567. The reversal of 193232972550 is 55279232391.

It is a self number, because there is not a number n which added to its sum of digits gives 193232972550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1086334 + ... + 1251633.

It is an arithmetic number, because the mean of its divisors is an integer number (5435775600).

Almost surely, 2^193232972550 is an apocalyptic number.

193232972550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193232972550 is an abundant number, since it is smaller than the sum of its proper divisors (328601485050).

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

193232972550 is a wasteful number, since it uses less digits than its factorization.

193232972550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338030 (or 2338025 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 193232972550 in words is "one hundred ninety-three billion, two hundred thirty-two million, nine hundred seventy-two thousand, five hundred fifty".