51353850 has 24 divisors (see below), whose sum is σ = 127357920. Its totient is φ = 13694320.

The previous prime is 51353833. The next prime is 51353881. The reversal of 51353850 is 5835315.

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

It is a Curzon number.

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, 171030 + ... + 171329.

It is an arithmetic number, because the mean of its divisors is an integer number (5306580).

Almost surely, 2^51353850 is an apocalyptic number.

51353850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51353850 is an abundant number, since it is smaller than the sum of its proper divisors (76004070).

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

51353850 is a wasteful number, since it uses less digits than its factorization.

51353850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342374 (or 342369 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 51353850 is about 7166.1600596135. The cubic root of 51353850 is about 371.6986662531.

The spelling of 51353850 in words is "fifty-one million, three hundred fifty-three thousand, eight hundred fifty".