53222490 has 36 divisors (see below), whose sum is σ = 138558654. Its totient is φ = 14174208.

The previous prime is 53222489. The next prime is 53222509. The reversal of 53222490 is 9422235.

It can be written as a sum of positive squares in 3 ways, for example, as 37564641 + 15657849 = 6129^2 + 3957^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 68826 + ... + 69594.

Almost surely, 2^53222490 is an apocalyptic number.

53222490 is an abundant number, since it is smaller than the sum of its proper divisors (85336164).

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

53222490 is an equidigital number, since it uses as much as digits as its factorization.

53222490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53222490 is about 7295.3745620085. The cubic root of 53222490 is about 376.1534617649.

The spelling of 53222490 in words is "fifty-three million, two hundred twenty-two thousand, four hundred ninety".