52001513 has 4 divisors (see below), whose sum is σ = 52659840. Its totient is φ = 51343188.

The previous prime is 52001503. The next prime is 52001527. The reversal of 52001513 is 31510025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52001513 - 2⁴ = 52001497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52001491 and 52001500.

It is not an unprimeable number, because it can be changed into a prime (52001503) 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, 329045 + ... + 329202.

It is an arithmetic number, because the mean of its divisors is an integer number (13164960).

Almost surely, 2^52001513 is an apocalyptic number.

It is an amenable number.

52001513 is a deficient number, since it is larger than the sum of its proper divisors (658327).

52001513 is an equidigital number, since it uses as much as digits as its factorization.

52001513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658326.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 52001513 is about 7211.2074578395. The cubic root of 52001513 is about 373.2547357039.

Adding to 52001513 its reverse (31510025), we get a palindrome (83511538).

The spelling of 52001513 in words is "fifty-two million, one thousand, five hundred thirteen".