51499713 has 8 divisors (see below), whose sum is σ = 68911776. Its totient is φ = 34210400.

The previous prime is 51499697. The next prime is 51499727. The reversal of 51499713 is 31799415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51499713 - 2⁴ = 51499697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51499213) 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 in 7 ways as a sum of consecutive naturals, for example, 29703 + ... + 31388.

It is an arithmetic number, because the mean of its divisors is an integer number (8613972).

Almost surely, 2^51499713 is an apocalyptic number.

It is an amenable number.

51499713 is a deficient number, since it is larger than the sum of its proper divisors (17412063).

51499713 is a wasteful number, since it uses less digits than its factorization.

51499713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61375.

The product of its digits is 34020, while the sum is 39.

The square root of 51499713 is about 7176.3300509383. The cubic root of 51499713 is about 372.0502519118.

The spelling of 51499713 in words is "fifty-one million, four hundred ninety-nine thousand, seven hundred thirteen".