51333849 has 12 divisors (see below), whose sum is σ = 84741696. Its totient is φ = 29333592.

The previous prime is 51333847. The next prime is 51333853. The reversal of 51333849 is 94833315.

It is not a de Polignac number, because 51333849 - 2¹ = 51333847 is a prime.

It is a hoax number, since the sum of its digits (36) 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 (51333847) 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, 407349 + ... + 407474.

It is an arithmetic number, because the mean of its divisors is an integer number (7061808).

Almost surely, 2^51333849 is an apocalyptic number.

It is an amenable number.

51333849 is a deficient number, since it is larger than the sum of its proper divisors (33407847).

51333849 is a wasteful number, since it uses less digits than its factorization.

51333849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814836 (or 814833 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 51333849 is about 7164.7644064547. The cubic root of 51333849 is about 371.6504043059.

The spelling of 51333849 in words is "fifty-one million, three hundred thirty-three thousand, eight hundred forty-nine".