51233503200 has 144 divisors (see below), whose sum is σ = 181925606016. Its totient is φ = 12420236800.

The previous prime is 51233503193. The next prime is 51233503213. The reversal of 51233503200 is 230533215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 943932 + ... + 996731.

It is an arithmetic number, because the mean of its divisors is an integer number (1263372264).

Almost surely, 2^51233503200 is an apocalyptic number.

51233503200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51233503200 is an abundant number, since it is smaller than the sum of its proper divisors (130692102816).

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

51233503200 is a wasteful number, since it uses less digits than its factorization.

51233503200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940697 (or 1940684 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The spelling of 51233503200 in words is "fifty-one billion, two hundred thirty-three million, five hundred three thousand, two hundred".