51624822 has 16 divisors (see below), whose sum is σ = 105768432. Its totient is φ = 16788480.

The previous prime is 51624821. The next prime is 51624829. The reversal of 51624822 is 22842615.

It is a self number, because there is not a number n which added to its sum of digits gives 51624822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51624821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104683 + ... + 105174.

It is an arithmetic number, because the mean of its divisors is an integer number (6610527).

Almost surely, 2^51624822 is an apocalyptic number.

51624822 is an abundant number, since it is smaller than the sum of its proper divisors (54143610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51624822 is a wasteful number, since it uses less digits than its factorization.

51624822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209903.

The product of its digits is 7680, while the sum is 30.

The square root of 51624822 is about 7185.0415447651. The cubic root of 51624822 is about 372.3512839677.

The spelling of 51624822 in words is "fifty-one million, six hundred twenty-four thousand, eight hundred twenty-two".