51499073 has 8 divisors (see below), whose sum is σ = 52665600. Its totient is φ = 50345568.

The previous prime is 51499057. The next prime is 51499087. The reversal of 51499073 is 37099415.

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 51499073 - 2⁴ = 51499057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51499043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4973 + ... + 11301.

It is an arithmetic number, because the mean of its divisors is an integer number (6583200).

Almost surely, 2^51499073 is an apocalyptic number.

It is an amenable number.

51499073 is a deficient number, since it is larger than the sum of its proper divisors (1166527).

51499073 is a wasteful number, since it uses less digits than its factorization.

51499073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6511.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 51499073 is about 7176.2854597626. The cubic root of 51499073 is about 372.0487107178.

The spelling of 51499073 in words is "fifty-one million, four hundred ninety-nine thousand, seventy-three".