51361850 has 24 divisors (see below), whose sum is σ = 96749760. Its totient is φ = 20283120.

The previous prime is 51361847. The next prime is 51361859. The reversal of 51361850 is 5816315.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51361859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2552 + ... + 10451.

It is an arithmetic number, because the mean of its divisors is an integer number (4031240).

Almost surely, 2^51361850 is an apocalyptic number.

51361850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51361850 is a deficient number, since it is larger than the sum of its proper divisors (45387910).

51361850 is a wasteful number, since it uses less digits than its factorization.

51361850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13094 (or 13089 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 51361850 is about 7166.7182168689. The cubic root of 51361850 is about 371.7179665583.

The spelling of 51361850 in words is "fifty-one million, three hundred sixty-one thousand, eight hundred fifty".