520153427 has 2 divisors, whose sum is σ = 520153428. Its totient is φ = 520153426.

The previous prime is 520153373. The next prime is 520153451. The reversal of 520153427 is 724351025.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520153427 - 2¹⁴ = 520137043 is a prime.

It is equal to p_27360290 and since 520153427 and 27360290 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520153427.

It is not a weakly prime, because it can be changed into another prime (520153727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260076713 + 260076714.

It is an arithmetic number, because the mean of its divisors is an integer number (260076714).

Almost surely, 2^520153427 is an apocalyptic number.

520153427 is a deficient number, since it is larger than the sum of its proper divisors (1).

520153427 is an equidigital number, since it uses as much as digits as its factorization.

520153427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 520153427 is about 22806.8723633908. The cubic root of 520153427 is about 804.2242321319.

The spelling of 520153427 in words is "five hundred twenty million, one hundred fifty-three thousand, four hundred twenty-seven".