520552451 has 4 divisors (see below), whose sum is σ = 520632600. Its totient is φ = 520472304.

The previous prime is 520552447. The next prime is 520552463. The reversal of 520552451 is 154255025.

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 520552451 - 2² = 520552447 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (520552471) 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, 29381 + ... + 43638.

It is an arithmetic number, because the mean of its divisors is an integer number (130158150).

Almost surely, 2^520552451 is an apocalyptic number.

520552451 is a deficient number, since it is larger than the sum of its proper divisors (80149).

520552451 is an equidigital number, since it uses as much as digits as its factorization.

520552451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80148.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 520552451 is about 22815.6185758791. The cubic root of 520552451 is about 804.4298270775.

The spelling of 520552451 in words is "five hundred twenty million, five hundred fifty-two thousand, four hundred fifty-one".