51464799 has 24 divisors (see below), whose sum is σ = 76627824. Its totient is φ = 33264000.

The previous prime is 51464767. The next prime is 51464813. The reversal of 51464799 is 99746415.

51464799 is a `hidden beast` number, since 514 + 6 + 47 + 99 = 666.

51464799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51464799 - 2⁵ = 51464767 is a prime.

It is a super-2 number, since 2×51464799² = 5297251072220802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51464719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77529 + ... + 78189.

It is an arithmetic number, because the mean of its divisors is an integer number (3192826).

Almost surely, 2^51464799 is an apocalyptic number.

51464799 is a deficient number, since it is larger than the sum of its proper divisors (25163025).

51464799 is a wasteful number, since it uses less digits than its factorization.

51464799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 916 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 51464799 is about 7173.8970580850. The cubic root of 51464799 is about 371.9661563037.

The spelling of 51464799 in words is "fifty-one million, four hundred sixty-four thousand, seven hundred ninety-nine".