51627191 has 12 divisors (see below), whose sum is σ = 64855056. Its totient is φ = 40228320.

The previous prime is 51627187. The next prime is 51627193. The reversal of 51627191 is 19172615.

It is not a de Polignac number, because 51627191 - 2² = 51627187 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51627193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29630 + ... + 31323.

It is an arithmetic number, because the mean of its divisors is an integer number (5404588).

Almost surely, 2^51627191 is an apocalyptic number.

51627191 is a deficient number, since it is larger than the sum of its proper divisors (13227865).

51627191 is a wasteful number, since it uses less digits than its factorization.

51627191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60982 (or 60971 counting only the distinct ones).

The product of its digits is 3780, while the sum is 32.

The square root of 51627191 is about 7185.2063992623. The cubic root of 51627191 is about 372.3569794624.

The spelling of 51627191 in words is "fifty-one million, six hundred twenty-seven thousand, one hundred ninety-one".