51222524 has 12 divisors (see below), whose sum is σ = 90902448. Its totient is φ = 25250400.

The previous prime is 51222481. The next prime is 51222533. The reversal of 51222524 is 42522215.

It is a self number, because there is not a number n which added to its sum of digits gives 51222524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89897 + ... + 90464.

It is an arithmetic number, because the mean of its divisors is an integer number (7575204).

Almost surely, 2^51222524 is an apocalyptic number.

It is an amenable number.

51222524 is a deficient number, since it is larger than the sum of its proper divisors (39679924).

51222524 is a wasteful number, since it uses less digits than its factorization.

51222524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180436 (or 180434 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 51222524 is about 7156.9912672854. The cubic root of 51222524 is about 371.3815503452.

Adding to 51222524 its reverse (42522215), we get a palindrome (93744739).

The spelling of 51222524 in words is "fifty-one million, two hundred twenty-two thousand, five hundred twenty-four".