51840502 has 8 divisors (see below), whose sum is σ = 88869456. Its totient is φ = 22217352.

The previous prime is 51840491. The next prime is 51840539. The reversal of 51840502 is 20504815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51840502² = 5374875295224008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851433 + ... + 1851460.

It is an arithmetic number, because the mean of its divisors is an integer number (11108682).

Almost surely, 2^51840502 is an apocalyptic number.

51840502 is a deficient number, since it is larger than the sum of its proper divisors (37028954).

51840502 is a wasteful number, since it uses less digits than its factorization.

51840502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702902.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 51840502 is about 7200.0348610267. The cubic root of 51840502 is about 372.8691042837.

The spelling of 51840502 in words is "fifty-one million, eight hundred forty thousand, five hundred two".