520426415 has 4 divisors (see below), whose sum is σ = 624511704. Its totient is φ = 416341128.

The previous prime is 520426411. The next prime is 520426429. The reversal of 520426415 is 514624025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520426415 - 2² = 520426411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520426411) 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, 52042637 + ... + 52042646.

It is an arithmetic number, because the mean of its divisors is an integer number (156127926).

Almost surely, 2^520426415 is an apocalyptic number.

520426415 is a deficient number, since it is larger than the sum of its proper divisors (104085289).

520426415 is a wasteful number, since it uses less digits than its factorization.

520426415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104085288.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 520426415 is about 22812.8563533811. The cubic root of 520426415 is about 804.3648990693.

The spelling of 520426415 in words is "five hundred twenty million, four hundred twenty-six thousand, four hundred fifteen".