520962457 has 4 divisors (see below), whose sum is σ = 521278516. Its totient is φ = 520646400.

The previous prime is 520962451. The next prime is 520962499. The reversal of 520962457 is 754269025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 274598041 + 246364416 = 16571^2 + 15696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520962457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520962451) 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, 155544 + ... + 158857.

It is an arithmetic number, because the mean of its divisors is an integer number (130319629).

Almost surely, 2^520962457 is an apocalyptic number.

It is an amenable number.

520962457 is a deficient number, since it is larger than the sum of its proper divisors (316059).

520962457 is a wasteful number, since it uses less digits than its factorization.

520962457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316058.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 520962457 is about 22824.6020118643. The cubic root of 520962457 is about 804.6409710265.

The spelling of 520962457 in words is "five hundred twenty million, nine hundred sixty-two thousand, four hundred fifty-seven".