51576465 has 16 divisors (see below), whose sum is σ = 86110848. Its totient is φ = 26311296.

The previous prime is 51576463. The next prime is 51576491. The reversal of 51576465 is 56467515.

It is not a de Polignac number, because 51576465 - 2¹ = 51576463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51576463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74404 + ... + 75093.

It is an arithmetic number, because the mean of its divisors is an integer number (5381928).

Almost surely, 2^51576465 is an apocalyptic number.

It is an amenable number.

51576465 is a deficient number, since it is larger than the sum of its proper divisors (34534383).

51576465 is a wasteful number, since it uses less digits than its factorization.

51576465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149528.

The product of its digits is 126000, while the sum is 39.

The square root of 51576465 is about 7181.6756401274. The cubic root of 51576465 is about 372.2349870956.

The spelling of 51576465 in words is "fifty-one million, five hundred seventy-six thousand, four hundred sixty-five".