51195883 has 4 divisors (see below), whose sum is σ = 51665680. Its totient is φ = 50726088.

The previous prime is 51195869. The next prime is 51195889. The reversal of 51195883 is 38859115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38859115 = 5 ⋅7771823.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51195883 is a prime.

It is a super-2 number, since 2×51195883² = 5242036872299378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51195889) 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, 234735 + ... + 234952.

It is an arithmetic number, because the mean of its divisors is an integer number (12916420).

Almost surely, 2^51195883 is an apocalyptic number.

51195883 is a deficient number, since it is larger than the sum of its proper divisors (469797).

51195883 is a wasteful number, since it uses less digits than its factorization.

51195883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469796.

The product of its digits is 43200, while the sum is 40.

The square root of 51195883 is about 7155.1298380952. The cubic root of 51195883 is about 371.3171535987.

The spelling of 51195883 in words is "fifty-one million, one hundred ninety-five thousand, eight hundred eighty-three".