51663254 has 8 divisors (see below), whose sum is σ = 78365880. Its totient is φ = 25541296.

The previous prime is 51663251. The next prime is 51663257. The reversal of 51663254 is 45236615.

It is an interprime number because it is at equal distance from previous prime (51663251) and next prime (51663257).

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

It is a self number, because there is not a number n which added to its sum of digits gives 51663254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51663251) 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, 144944 + ... + 145299.

It is an arithmetic number, because the mean of its divisors is an integer number (9795735).

Almost surely, 2^51663254 is an apocalyptic number.

51663254 is a deficient number, since it is larger than the sum of its proper divisors (26702626).

51663254 is a wasteful number, since it uses less digits than its factorization.

51663254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290334.

The product of its digits is 21600, while the sum is 32.

The square root of 51663254 is about 7187.7154924218. The cubic root of 51663254 is about 372.4436597823.

Adding to 51663254 its reverse (45236615), we get a palindrome (96899869).

The spelling of 51663254 in words is "fifty-one million, six hundred sixty-three thousand, two hundred fifty-four".