51816376 has 48 divisors (see below), whose sum is σ = 103584960. Its totient is φ = 24272640.

The previous prime is 51816367. The next prime is 51816377. The reversal of 51816376 is 67361815.

Its product of digits (30240) is a multiple of the sum of its prime divisors (189).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51816377) 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, 458496 + ... + 458608.

It is an arithmetic number, because the mean of its divisors is an integer number (2158020).

Almost surely, 2^51816376 is an apocalyptic number.

It is an amenable number.

51816376 is a deficient number, since it is larger than the sum of its proper divisors (51768584).

51816376 is a wasteful number, since it uses less digits than its factorization.

51816376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 189 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 51816376 is about 7198.3592574975. The cubic root of 51816376 is about 372.8112522468.

The spelling of 51816376 in words is "fifty-one million, eight hundred sixteen thousand, three hundred seventy-six".