53516066 has 4 divisors (see below), whose sum is σ = 80274102. Its totient is φ = 26758032.

The previous prime is 53516063. The next prime is 53516069. The reversal of 53516066 is 66061535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66061535 = 5 ⋅13212307.

It is an interprime number because it is at equal distance from previous prime (53516063) and next prime (53516069).

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 8826841 = 6685^2 + 2971^2 .

It is not an unprimeable number, because it can be changed into a prime (53516063) 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, 13379015 + ... + 13379018.

Almost surely, 2^53516066 is an apocalyptic number.

53516066 is a deficient number, since it is larger than the sum of its proper divisors (26758036).

53516066 is a wasteful number, since it uses less digits than its factorization.

53516066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26758035.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 53516066 is about 7315.4675858758. The cubic root of 53516066 is about 376.8438165681.

The spelling of 53516066 in words is "fifty-three million, five hundred sixteen thousand, sixty-six".