53159515 has 4 divisors (see below), whose sum is σ = 63791424. Its totient is φ = 42527608.

The previous prime is 53159503. The next prime is 53159521. The reversal of 53159515 is 51595135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51595135 = 5 ⋅10319027.

It is a cyclic number.

It is not a de Polignac number, because 53159515 - 2⁷ = 53159387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5315947 + ... + 5315956.

It is an arithmetic number, because the mean of its divisors is an integer number (15947856).

Almost surely, 2^53159515 is an apocalyptic number.

53159515 is a deficient number, since it is larger than the sum of its proper divisors (10631909).

53159515 is a wasteful number, since it uses less digits than its factorization.

53159515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631908.

The product of its digits is 16875, while the sum is 34.

The square root of 53159515 is about 7291.0571935763. The cubic root of 53159515 is about 376.0050432212.

The spelling of 53159515 in words is "fifty-three million, one hundred fifty-nine thousand, five hundred fifteen".