53020522 has 4 divisors (see below), whose sum is σ = 79530786. Its totient is φ = 26510260.

The previous prime is 53020493. The next prime is 53020523. The reversal of 53020522 is 22502035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22502035 = 5 ⋅4500407.

It can be written as a sum of positive squares in only one way, i.e., 32959081 + 20061441 = 5741^2 + 4479^2 .

It is a super-2 number, since 2×53020522² = 5622351506304968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53020522.

It is not an unprimeable number, because it can be changed into a prime (53020523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13255129 + ... + 13255132.

Almost surely, 2^53020522 is an apocalyptic number.

53020522 is a deficient number, since it is larger than the sum of its proper divisors (26510264).

53020522 is a wasteful number, since it uses less digits than its factorization.

53020522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26510263.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 53020522 is about 7281.5192096155. The cubic root of 53020522 is about 375.6770512390.

Adding to 53020522 its reverse (22502035), we get a palindrome (75522557).

The spelling of 53020522 in words is "fifty-three million, twenty thousand, five hundred twenty-two".