51950430 has 64 divisors (see below), whose sum is σ = 158330880. Its totient is φ = 11873952.

The previous prime is 51950413. The next prime is 51950443. The reversal of 51950430 is 3405915.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51950394 and 51950403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11854 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (2473920).

Almost surely, 2^51950430 is an apocalyptic number.

51950430 is an abundant number, since it is smaller than the sum of its proper divisors (106380450).

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

51950430 is a wasteful number, since it uses less digits than its factorization.

51950430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27510 (or 27504 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51950430 is about 7207.6646703353. The cubic root of 51950430 is about 373.1324750403.

The spelling of 51950430 in words is "fifty-one million, nine hundred fifty thousand, four hundred thirty".