51265623 has 8 divisors (see below), whose sum is σ = 68578048. Its totient is φ = 34065144.

The previous prime is 51265607. The next prime is 51265633. The reversal of 51265623 is 32656215.

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

It is not a de Polignac number, because 51265623 - 2⁴ = 51265607 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 (51265603) 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, 26911 + ... + 28752.

It is an arithmetic number, because the mean of its divisors is an integer number (8572256).

Almost surely, 2^51265623 is an apocalyptic number.

51265623 is a deficient number, since it is larger than the sum of its proper divisors (17312425).

51265623 is a wasteful number, since it uses less digits than its factorization.

51265623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55973.

The product of its digits is 10800, while the sum is 30.

The square root of 51265623 is about 7160.0016061451. The cubic root of 51265623 is about 371.4856821805.

The spelling of 51265623 in words is "fifty-one million, two hundred sixty-five thousand, six hundred twenty-three".