51323395 has 4 divisors (see below), whose sum is σ = 61588080. Its totient is φ = 41058712.

The previous prime is 51323353. The next prime is 51323399. The reversal of 51323395 is 59332315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51323395 - 2⁹ = 51322883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51323399) 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, 5132335 + ... + 5132344.

It is an arithmetic number, because the mean of its divisors is an integer number (15397020).

Almost surely, 2^51323395 is an apocalyptic number.

51323395 is a deficient number, since it is larger than the sum of its proper divisors (10264685).

51323395 is a wasteful number, since it uses less digits than its factorization.

51323395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10264684.

The product of its digits is 12150, while the sum is 31.

The square root of 51323395 is about 7164.0348268277. The cubic root of 51323395 is about 371.6251740587.

The spelling of 51323395 in words is "fifty-one million, three hundred twenty-three thousand, three hundred ninety-five".