53018515 has 8 divisors (see below), whose sum is σ = 69406128. Its totient is φ = 38558880.

The previous prime is 53018509. The next prime is 53018533. The reversal of 53018515 is 51581035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53018515 - 2¹⁵ = 52985747 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481932 + ... + 482041.

It is an arithmetic number, because the mean of its divisors is an integer number (8675766).

Almost surely, 2^53018515 is an apocalyptic number.

53018515 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53018515 is a deficient number, since it is larger than the sum of its proper divisors (16387613).

53018515 is a wasteful number, since it uses less digits than its factorization.

53018515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963989.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 53018515 is about 7281.3813936643. The cubic root of 53018515 is about 375.6723109779.

The spelling of 53018515 in words is "fifty-three million, eighteen thousand, five hundred fifteen".