51850010280 has 32 divisors (see below), whose sum is σ = 155550031200. Its totient is φ = 13826669376.

The previous prime is 51850010269. The next prime is 51850010291. The reversal of 51850010280 is 8201005815.

It is an interprime number because it is at equal distance from previous prime (51850010269) and next prime (51850010291).

It is a super-2 number, since 2×51850010280² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216041590 + ... + 216041829.

It is an arithmetic number, because the mean of its divisors is an integer number (4860938475).

Almost surely, 2^51850010280 is an apocalyptic number.

It is an amenable number.

51850010280 is an abundant number, since it is smaller than the sum of its proper divisors (103700020920).

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

51850010280 is a wasteful number, since it uses less digits than its factorization.

51850010280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432083433 (or 432083429 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The spelling of 51850010280 in words is "fifty-one billion, eight hundred fifty million, ten thousand, two hundred eighty".