51492695 has 4 divisors (see below), whose sum is σ = 61791240. Its totient is φ = 41194152.

The previous prime is 51492671. The next prime is 51492697. The reversal of 51492695 is 59629415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59629415 = 5 ⋅11925883.

It is a cyclic number.

It is not a de Polignac number, because 51492695 - 2¹⁸ = 51230551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51492697) 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, 5149265 + ... + 5149274.

It is an arithmetic number, because the mean of its divisors is an integer number (15447810).

Almost surely, 2^51492695 is an apocalyptic number.

51492695 is a deficient number, since it is larger than the sum of its proper divisors (10298545).

51492695 is a wasteful number, since it uses less digits than its factorization.

51492695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298544.

The product of its digits is 97200, while the sum is 41.

The square root of 51492695 is about 7175.8410656870. The cubic root of 51492695 is about 372.0333510585.

The spelling of 51492695 in words is "fifty-one million, four hundred ninety-two thousand, six hundred ninety-five".