53032515 has 32 divisors (see below), whose sum is σ = 89752320. Its totient is φ = 26665344.

The previous prime is 53032513. The next prime is 53032523. The reversal of 53032515 is 51523035.

It is not a de Polignac number, because 53032515 - 2¹ = 53032513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53032513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90052 + ... + 90638.

It is an arithmetic number, because the mean of its divisors is an integer number (2804760).

Almost surely, 2^53032515 is an apocalyptic number.

53032515 is a deficient number, since it is larger than the sum of its proper divisors (36719805).

53032515 is a wasteful number, since it uses less digits than its factorization.

53032515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 53032515 is about 7282.3426862515. The cubic root of 53032515 is about 375.7053745815.

The spelling of 53032515 in words is "fifty-three million, thirty-two thousand, five hundred fifteen".