51513045 has 8 divisors (see below), whose sum is σ = 82420896. Its totient is φ = 27473616.

The previous prime is 51513029. The next prime is 51513061. The reversal of 51513045 is 54031515.

It is an interprime number because it is at equal distance from previous prime (51513029) and next prime (51513061).

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

It is not a de Polignac number, because 51513045 - 2⁴ = 51513029 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1717087 + ... + 1717116.

It is an arithmetic number, because the mean of its divisors is an integer number (10302612).

Almost surely, 2^51513045 is an apocalyptic number.

It is an amenable number.

51513045 is a deficient number, since it is larger than the sum of its proper divisors (30907851).

51513045 is a wasteful number, since it uses less digits than its factorization.

51513045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434211.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 51513045 is about 7177.2588778725. The cubic root of 51513045 is about 372.0823540065.

The spelling of 51513045 in words is "fifty-one million, five hundred thirteen thousand, forty-five".