51510045 has 32 divisors (see below), whose sum is σ = 87408000. Its totient is φ = 25830144.

The previous prime is 51510023. The next prime is 51510059. The reversal of 51510045 is 54001515.

It is not a de Polignac number, because 51510045 - 2⁵ = 51510013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41859 + ... + 43071.

It is an arithmetic number, because the mean of its divisors is an integer number (2731500).

Almost surely, 2^51510045 is an apocalyptic number.

It is an amenable number.

51510045 is a deficient number, since it is larger than the sum of its proper divisors (35897955).

51510045 is a wasteful number, since it uses less digits than its factorization.

51510045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 51510045 is about 7177.0498813928. The cubic root of 51510045 is about 372.0751307959.

The spelling of 51510045 in words is "fifty-one million, five hundred ten thousand, forty-five".