53442542 has 8 divisors (see below), whose sum is σ = 81064800. Its totient is φ = 26420944.

The previous prime is 53442539. The next prime is 53442553. The reversal of 53442542 is 24524435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×53442542² = 5712210590843528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149942 + ... + 150297.

It is an arithmetic number, because the mean of its divisors is an integer number (10133100).

Almost surely, 2^53442542 is an apocalyptic number.

53442542 is a deficient number, since it is larger than the sum of its proper divisors (27622258).

53442542 is a wasteful number, since it uses less digits than its factorization.

53442542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300330.

The product of its digits is 19200, while the sum is 29.

The square root of 53442542 is about 7310.4406159957. The cubic root of 53442542 is about 376.6711596126.

Adding to 53442542 its reverse (24524435), we get a palindrome (77966977).

The spelling of 53442542 in words is "fifty-three million, four hundred forty-two thousand, five hundred forty-two".