51463523 has 4 divisors (see below), whose sum is σ = 52115040. Its totient is φ = 50812008.

The previous prime is 51463519. The next prime is 51463537. The reversal of 51463523 is 32536415.

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 51463523 - 2² = 51463519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51463513) 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 3 ways as a sum of consecutive naturals, for example, 325640 + ... + 325797.

It is an arithmetic number, because the mean of its divisors is an integer number (13028760).

Almost surely, 2^51463523 is an apocalyptic number.

51463523 is a deficient number, since it is larger than the sum of its proper divisors (651517).

51463523 is an equidigital number, since it uses as much as digits as its factorization.

51463523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651516.

The product of its digits is 10800, while the sum is 29.

The square root of 51463523 is about 7173.8081240022. The cubic root of 51463523 is about 371.9630821459.

Adding to 51463523 its reverse (32536415), we get a palindrome (83999938).

The spelling of 51463523 in words is "fifty-one million, four hundred sixty-three thousand, five hundred twenty-three".