53321522 has 4 divisors (see below), whose sum is σ = 79982286. Its totient is φ = 26660760.

The previous prime is 53321509. The next prime is 53321531. The reversal of 53321522 is 22512335.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43705321 + 9616201 = 6611^2 + 3101^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13330379 + ... + 13330382.

Almost surely, 2^53321522 is an apocalyptic number.

53321522 is a deficient number, since it is larger than the sum of its proper divisors (26660764).

53321522 is a wasteful number, since it uses less digits than its factorization.

53321522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26660763.

The product of its digits is 1800, while the sum is 23.

The square root of 53321522 is about 7302.1587219123. The cubic root of 53321522 is about 376.3866222753.

Adding to 53321522 its reverse (22512335), we get a palindrome (75833857).

The spelling of 53321522 in words is "fifty-three million, three hundred twenty-one thousand, five hundred twenty-two".