51499268 has 12 divisors (see below), whose sum is σ = 90377280. Its totient is φ = 25677192.

The previous prime is 51499267. The next prime is 51499289. The reversal of 51499268 is 86299415.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51499267) 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, 16496 + ... + 19367.

It is an arithmetic number, because the mean of its divisors is an integer number (7531440).

Almost surely, 2^51499268 is an apocalyptic number.

It is an amenable number.

51499268 is a deficient number, since it is larger than the sum of its proper divisors (38878012).

51499268 is a wasteful number, since it uses less digits than its factorization.

51499268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36226 (or 36224 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 51499268 is about 7176.2990461658. The cubic root of 51499268 is about 372.0491803017.

The spelling of 51499268 in words is "fifty-one million, four hundred ninety-nine thousand, two hundred sixty-eight".