51363530 has 32 divisors (see below), whose sum is σ = 95136768. Its totient is φ = 19958400.

The previous prime is 51363523. The next prime is 51363539. The reversal of 51363530 is 3536315.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51363530.

It is not an unprimeable number, because it can be changed into a prime (51363539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51335 + ... + 52325.

It is an arithmetic number, because the mean of its divisors is an integer number (2973024).

Almost surely, 2^51363530 is an apocalyptic number.

51363530 is a deficient number, since it is larger than the sum of its proper divisors (43773238).

51363530 is a wasteful number, since it uses less digits than its factorization.

51363530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 51363530 is about 7166.8354243697. The cubic root of 51363530 is about 371.7220193677.

Adding to 51363530 its reverse (3536315), we get a palindrome (54899845).

The spelling of 51363530 in words is "fifty-one million, three hundred sixty-three thousand, five hundred thirty".