53516042 has 4 divisors (see below), whose sum is σ = 80274066. Its totient is φ = 26758020.

The previous prime is 53516041. The next prime is 53516053. The reversal of 53516042 is 24061535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24061535 = 5 ⋅4812307.

It can be written as a sum of positive squares in only one way, i.e., 48846121 + 4669921 = 6989^2 + 2161^2 .

It is not an unprimeable number, because it can be changed into a prime (53516041) by changing a digit.

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, 13379009 + ... + 13379012.

Almost surely, 2^53516042 is an apocalyptic number.

53516042 is a deficient number, since it is larger than the sum of its proper divisors (26758024).

53516042 is a wasteful number, since it uses less digits than its factorization.

53516042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26758023.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 53516042 is about 7315.4659455157. The cubic root of 53516042 is about 376.8437602345.

Adding to 53516042 its reverse (24061535), we get a palindrome (77577577).

The spelling of 53516042 in words is "fifty-three million, five hundred sixteen thousand, forty-two".