520252541 has 4 divisors (see below), whose sum is σ = 531321792. Its totient is φ = 509183292.

The previous prime is 520252517. The next prime is 520252561. The reversal of 520252541 is 145252025.

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 520252541 - 2¹⁸ = 519990397 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 520252541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520252561) 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, 5534555 + ... + 5534648.

It is an arithmetic number, because the mean of its divisors is an integer number (132830448).

Almost surely, 2^520252541 is an apocalyptic number.

It is an amenable number.

520252541 is a deficient number, since it is larger than the sum of its proper divisors (11069251).

520252541 is a wasteful number, since it uses less digits than its factorization.

520252541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11069250.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 520252541 is about 22809.0451575685. The cubic root of 520252541 is about 804.2753098935.

The spelling of 520252541 in words is "five hundred twenty million, two hundred fifty-two thousand, five hundred forty-one".