51132697 has 8 divisors (see below), whose sum is σ = 63749952. Its totient is φ = 39843600.

The previous prime is 51132689. The next prime is 51132707. The reversal of 51132697 is 79623115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51132697 - 2³ = 51132689 is a prime.

It is a super-2 number, since 2×51132697² = 5229105404987618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51132607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331954 + ... + 332107.

It is an arithmetic number, because the mean of its divisors is an integer number (7968744).

Almost surely, 2^51132697 is an apocalyptic number.

It is an amenable number.

51132697 is a deficient number, since it is larger than the sum of its proper divisors (12617255).

51132697 is a wasteful number, since it uses less digits than its factorization.

51132697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664079.

The product of its digits is 11340, while the sum is 34.

The square root of 51132697 is about 7150.7130413687. The cubic root of 51132697 is about 371.1643307335.

The spelling of 51132697 in words is "fifty-one million, one hundred thirty-two thousand, six hundred ninety-seven".