51066597 has 4 divisors (see below), whose sum is σ = 68088800. Its totient is φ = 34044396.

The previous prime is 51066583. The next prime is 51066599. The reversal of 51066597 is 79566015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51066597 - 2⁸ = 51066341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51066599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8511097 + ... + 8511102.

It is an arithmetic number, because the mean of its divisors is an integer number (17022200).

Almost surely, 2^51066597 is an apocalyptic number.

It is an amenable number.

51066597 is a deficient number, since it is larger than the sum of its proper divisors (17022203).

51066597 is a wasteful number, since it uses less digits than its factorization.

51066597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17022202.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 51066597 is about 7146.0896300005. The cubic root of 51066597 is about 371.0043252112.

The spelling of 51066597 in words is "fifty-one million, sixty-six thousand, five hundred ninety-seven".