51151065 has 32 divisors (see below), whose sum is σ = 93803520. Its totient is φ = 23315904.

The previous prime is 51151063. The next prime is 51151069. The reversal of 51151065 is 56015115.

It is not a de Polignac number, because 51151065 - 2¹ = 51151063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51151063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64602 + ... + 65388.

It is an arithmetic number, because the mean of its divisors is an integer number (2931360).

Almost surely, 2^51151065 is an apocalyptic number.

It is an amenable number.

51151065 is a deficient number, since it is larger than the sum of its proper divisors (42652455).

51151065 is a wasteful number, since it uses less digits than its factorization.

51151065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 51151065 is about 7151.9972734894. The cubic root of 51151065 is about 371.2087689022.

The spelling of 51151065 in words is "fifty-one million, one hundred fifty-one thousand, sixty-five".