51913814 has 16 divisors (see below), whose sum is σ = 83878080. Its totient is φ = 24018120.

The previous prime is 51913793. The next prime is 51913817. The reversal of 51913814 is 41831915.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51913817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14252 + ... + 17519.

It is an arithmetic number, because the mean of its divisors is an integer number (5242380).

Almost surely, 2^51913814 is an apocalyptic number.

51913814 is a deficient number, since it is larger than the sum of its proper divisors (31964266).

51913814 is a wasteful number, since it uses less digits than its factorization.

51913814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31835.

The product of its digits is 4320, while the sum is 32.

The square root of 51913814 is about 7205.1241488263. The cubic root of 51913814 is about 373.0447899792.

The spelling of 51913814 in words is "fifty-one million, nine hundred thirteen thousand, eight hundred fourteen".