51810368 has 28 divisors (see below), whose sum is σ = 103052880. Its totient is φ = 25844352.

The previous prime is 51810361. The next prime is 51810377. The reversal of 51810368 is 86301815.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (51810361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40523 + ... + 41781.

It is an arithmetic number, because the mean of its divisors is an integer number (3680460).

Almost surely, 2^51810368 is an apocalyptic number.

It is an amenable number.

51810368 is a deficient number, since it is larger than the sum of its proper divisors (51242512).

51810368 is a wasteful number, since it uses less digits than its factorization.

51810368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 51810368 is about 7197.9419280792. The cubic root of 51810368 is about 372.7968427959.

The spelling of 51810368 in words is "fifty-one million, eight hundred ten thousand, three hundred sixty-eight".