51572099 has 12 divisors (see below), whose sum is σ = 54717696. Its totient is φ = 48599568.

The previous prime is 51572089. The next prime is 51572107. The reversal of 51572099 is 99027515.

51572099 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 51572099 - 2²⁰ = 50523523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51572089) 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 11 ways as a sum of consecutive naturals, for example, 134462 + ... + 134844.

It is an arithmetic number, because the mean of its divisors is an integer number (4559808).

Almost surely, 2^51572099 is an apocalyptic number.

51572099 is a deficient number, since it is larger than the sum of its proper divisors (3145597).

51572099 is a wasteful number, since it uses less digits than its factorization.

51572099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 51572099 is about 7181.3716656360. The cubic root of 51572099 is about 372.2244834429.

The spelling of 51572099 in words is "fifty-one million, five hundred seventy-two thousand, ninety-nine".