53522730 has 24 divisors (see below), whose sum is σ = 139159332. Its totient is φ = 14272704.

The previous prime is 53522717. The next prime is 53522743. The reversal of 53522730 is 3722535.

It is an interprime number because it is at equal distance from previous prime (53522717) and next prime (53522743).

It can be written as a sum of positive squares in 2 ways, for example, as 48818169 + 4704561 = 6987^2 + 2169^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53522694 and 53522703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297259 + ... + 297438.

Almost surely, 2^53522730 is an apocalyptic number.

53522730 is an abundant number, since it is smaller than the sum of its proper divisors (85636602).

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

53522730 is a wasteful number, since it uses less digits than its factorization.

53522730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594710 (or 594707 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 53522730 is about 7315.9230449753. The cubic root of 53522730 is about 376.8594578708.

The spelling of 53522730 in words is "fifty-three million, five hundred twenty-two thousand, seven hundred thirty".