51075013 has 8 divisors (see below), whose sum is σ = 57014496. Its totient is φ = 45351600.

The previous prime is 51074999. The next prime is 51075029. The reversal of 51075013 is 31057015.

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 51075013 - 2⁵ = 51074981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51075043) 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, 53518 + ... + 54463.

It is an arithmetic number, because the mean of its divisors is an integer number (7126812).

Almost surely, 2^51075013 is an apocalyptic number.

It is an amenable number.

51075013 is a deficient number, since it is larger than the sum of its proper divisors (5939483).

51075013 is a wasteful number, since it uses less digits than its factorization.

51075013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108035.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 51075013 is about 7146.6784592564. The cubic root of 51075013 is about 371.0247051404.

The spelling of 51075013 in words is "fifty-one million, seventy-five thousand, thirteen".