51575495 has 4 divisors (see below), whose sum is σ = 61890600. Its totient is φ = 41260392.

The previous prime is 51575479. The next prime is 51575509. The reversal of 51575495 is 59457515.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51575495 - 2⁴ = 51575479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5157545 + ... + 5157554.

It is an arithmetic number, because the mean of its divisors is an integer number (15472650).

Almost surely, 2^51575495 is an apocalyptic number.

51575495 is a deficient number, since it is larger than the sum of its proper divisors (10315105).

51575495 is a wasteful number, since it uses less digits than its factorization.

51575495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10315104.

The product of its digits is 157500, while the sum is 41.

The square root of 51575495 is about 7181.6081068240. The cubic root of 51575495 is about 372.2326535364.

The spelling of 51575495 in words is "fifty-one million, five hundred seventy-five thousand, four hundred ninety-five".