53020442 has 4 divisors (see below), whose sum is σ = 79530666. Its totient is φ = 26510220.

The previous prime is 53020427. The next prime is 53020453. The reversal of 53020442 is 24402035.

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., 47596201 + 5424241 = 6899^2 + 2329^2 .

It is a super-2 number, since 2×53020442² = 5622334539750728, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 13255109 + ... + 13255112.

Almost surely, 2^53020442 is an apocalyptic number.

53020442 is a deficient number, since it is larger than the sum of its proper divisors (26510224).

53020442 is a wasteful number, since it uses less digits than its factorization.

53020442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26510223.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 53020442 is about 7281.5137162543. The cubic root of 53020442 is about 375.6768622922.

Adding to 53020442 its reverse (24402035), we get a palindrome (77422477).

The spelling of 53020442 in words is "fifty-three million, twenty thousand, four hundred forty-two".