51231307350 has 24 divisors (see below), whose sum is σ = 127053642600. Its totient is φ = 13661681920.

The previous prime is 51231307349. The next prime is 51231307397. The reversal of 51231307350 is 5370313215.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 170770875 + ... + 170771174.

It is an arithmetic number, because the mean of its divisors is an integer number (5293901775).

Almost surely, 2^51231307350 is an apocalyptic number.

51231307350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51231307350 is an abundant number, since it is smaller than the sum of its proper divisors (75822335250).

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

51231307350 is a wasteful number, since it uses less digits than its factorization.

51231307350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341542064 (or 341542059 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 30.

The spelling of 51231307350 in words is "fifty-one billion, two hundred thirty-one million, three hundred seven thousand, three hundred fifty".