53516051 has 4 divisors (see below), whose sum is σ = 56664072. Its totient is φ = 50368032.

The previous prime is 53516041. The next prime is 53516053. The reversal of 53516051 is 15061535.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53516051 - 2¹⁰ = 53515027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53516051.

It is not an unprimeable number, because it can be changed into a prime (53516053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573985 + ... + 1574018.

It is an arithmetic number, because the mean of its divisors is an integer number (14166018).

Almost surely, 2^53516051 is an apocalyptic number.

53516051 is a deficient number, since it is larger than the sum of its proper divisors (3148021).

53516051 is a wasteful number, since it uses less digits than its factorization.

53516051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148020.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 53516051 is about 7315.4665606508. The cubic root of 53516051 is about 376.8437813596.

Adding to 53516051 its reverse (15061535), we get a palindrome (68577586).

The spelling of 53516051 in words is "fifty-three million, five hundred sixteen thousand, fifty-one".