51810364 has 6 divisors (see below), whose sum is σ = 90668144. Its totient is φ = 25905180.

The previous prime is 51810361. The next prime is 51810377. The reversal of 51810364 is 46301815.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6476292 + ... + 6476299.

Almost surely, 2^51810364 is an apocalyptic number.

It is an amenable number.

51810364 is a deficient number, since it is larger than the sum of its proper divisors (38857780).

51810364 is a wasteful number, since it uses less digits than its factorization.

51810364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12952595 (or 12952593 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 51810364 is about 7197.9416502220. The cubic root of 51810364 is about 372.7968332021.

The spelling of 51810364 in words is "fifty-one million, eight hundred ten thousand, three hundred sixty-four".