53517442 has 16 divisors (see below), whose sum is σ = 87782112. Its totient is φ = 24268320.

The previous prime is 53517437. The next prime is 53517449. The reversal of 53517442 is 24471535.

It is not an unprimeable number, because it can be changed into a prime (53517449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7393 + ... + 12715.

It is an arithmetic number, because the mean of its divisors is an integer number (5486382).

Almost surely, 2^53517442 is an apocalyptic number.

53517442 is a deficient number, since it is larger than the sum of its proper divisors (34264670).

53517442 is a wasteful number, since it uses less digits than its factorization.

53517442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793.

The product of its digits is 16800, while the sum is 31.

The square root of 53517442 is about 7315.5616325748. The cubic root of 53517442 is about 376.8470463312.

Adding to 53517442 its reverse (24471535), we get a palindrome (77988977).

The spelling of 53517442 in words is "fifty-three million, five hundred seventeen thousand, four hundred forty-two".