51513093 has 12 divisors (see below), whose sum is σ = 74515948. Its totient is φ = 34292160.

The previous prime is 51513089. The next prime is 51513101. The reversal of 51513093 is 39031515.

It can be written as a sum of positive squares in 2 ways, for example, as 21734244 + 29778849 = 4662^2 + 5457^2 .

It is not a de Polignac number, because 51513093 - 2² = 51513089 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 (51513013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3033 + ... + 10593.

Almost surely, 2^51513093 is an apocalyptic number.

It is an amenable number.

51513093 is a deficient number, since it is larger than the sum of its proper divisors (23002855).

51513093 is a wasteful number, since it uses less digits than its factorization.

51513093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8324 (or 8321 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 51513093 is about 7177.2622217667. The cubic root of 51513093 is about 372.0824695756.

The spelling of 51513093 in words is "fifty-one million, five hundred thirteen thousand, ninety-three".