51352499 has 4 divisors (see below), whose sum is σ = 56020920. Its totient is φ = 46684080.

The previous prime is 51352489. The next prime is 51352517. The reversal of 51352499 is 99425315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51352499 - 2¹² = 51348403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51352439) 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, 2334194 + ... + 2334215.

It is an arithmetic number, because the mean of its divisors is an integer number (14005230).

Almost surely, 2^51352499 is an apocalyptic number.

51352499 is a deficient number, since it is larger than the sum of its proper divisors (4668421).

51352499 is a wasteful number, since it uses less digits than its factorization.

51352499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668420.

The product of its digits is 48600, while the sum is 38.

The square root of 51352499 is about 7166.0657965162. The cubic root of 51352499 is about 371.6954067162.

The spelling of 51352499 in words is "fifty-one million, three hundred fifty-two thousand, four hundred ninety-nine".