53321542 has 4 divisors (see below), whose sum is σ = 79982316. Its totient is φ = 26660770.

The previous prime is 53321533. The next prime is 53321549. The reversal of 53321542 is 24512335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24512335 = 5 ⋅4902467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53321549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13330384 + ... + 13330387.

It is an arithmetic number, because the mean of its divisors is an integer number (19995579).

Almost surely, 2^53321542 is an apocalyptic number.

53321542 is a deficient number, since it is larger than the sum of its proper divisors (26660774).

53321542 is a wasteful number, since it uses less digits than its factorization.

53321542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26660773.

The product of its digits is 3600, while the sum is 25.

The square root of 53321542 is about 7302.1600913702. The cubic root of 53321542 is about 376.3866693341.

Adding to 53321542 its reverse (24512335), we get a palindrome (77833877).

The spelling of 53321542 in words is "fifty-three million, three hundred twenty-one thousand, five hundred forty-two".