51196693 has 4 divisors (see below), whose sum is σ = 51212448. Its totient is φ = 51180940.

The previous prime is 51196669. The next prime is 51196699. The reversal of 51196693 is 39669115.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39669115 = 5 ⋅7933823.

It is a cyclic number.

It is not a de Polignac number, because 51196693 - 2²¹ = 49099541 is a prime.

It is a super-2 number, since 2×51196693² = 5242202748272498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51196699) 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, 1003 + ... + 10168.

It is an arithmetic number, because the mean of its divisors is an integer number (12803112).

Almost surely, 2^51196693 is an apocalyptic number.

It is an amenable number.

51196693 is a deficient number, since it is larger than the sum of its proper divisors (15755).

51196693 is a wasteful number, since it uses less digits than its factorization.

51196693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15754.

The product of its digits is 43740, while the sum is 40.

The square root of 51196693 is about 7155.1864406177. The cubic root of 51196693 is about 371.3191118636.

The spelling of 51196693 in words is "fifty-one million, one hundred ninety-six thousand, six hundred ninety-three".