51222652 has 48 divisors (see below), whose sum is σ = 100696960. Its totient is φ = 22643712.

The previous prime is 51222641. The next prime is 51222659. The reversal of 51222652 is 25622215.

It is a happy number.

51222652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51222659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151828 + ... + 152164.

Almost surely, 2^51222652 is an apocalyptic number.

51222652 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51222652 is a deficient number, since it is larger than the sum of its proper divisors (49474308).

51222652 is a wasteful number, since it uses less digits than its factorization.

51222652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 468 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 51222652 is about 7157.0002095850. Note that the first 3 decimals coincide. The cubic root of 51222652 is about 371.3818596934.

Adding to 51222652 its reverse (25622215), we get a palindrome (76844867).

The spelling of 51222652 in words is "fifty-one million, two hundred twenty-two thousand, six hundred fifty-two".