51035009 has 4 divisors (see below), whose sum is σ = 51302400. Its totient is φ = 50767620.

The previous prime is 51034993. The next prime is 51035011. The reversal of 51035009 is 90053015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51035009 - 2⁴ = 51034993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51035209) 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, 133409 + ... + 133790.

It is an arithmetic number, because the mean of its divisors is an integer number (12825600).

Almost surely, 2^51035009 is an apocalyptic number.

It is an amenable number.

51035009 is a deficient number, since it is larger than the sum of its proper divisors (267391).

51035009 is a wasteful number, since it uses less digits than its factorization.

51035009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267390.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 51035009 is about 7143.8791283168. The cubic root of 51035009 is about 370.9278126927.

The spelling of 51035009 in words is "fifty-one million, thirty-five thousand, nine".