520627401 has 36 divisors (see below), whose sum is σ = 904983300. Its totient is φ = 287235648.

The previous prime is 520627399. The next prime is 520627403. The reversal of 520627401 is 104726025.

It is an interprime number because it is at equal distance from previous prime (520627399) and next prime (520627403).

It can be written as a sum of positive squares in 2 ways, for example, as 216090000 + 304537401 = 14700^2 + 17451^2 .

It is not a de Polignac number, because 520627401 - 2¹ = 520627399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520627403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7566 + ... + 33143.

It is an arithmetic number, because the mean of its divisors is an integer number (25138425).

Almost surely, 2^520627401 is an apocalyptic number.

It is an amenable number.

520627401 is a deficient number, since it is larger than the sum of its proper divisors (384355899).

520627401 is a wasteful number, since it uses less digits than its factorization.

520627401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40758 (or 40748 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 520627401 is about 22817.2610319468. The cubic root of 520627401 is about 804.4684329356.

The spelling of 520627401 in words is "five hundred twenty million, six hundred twenty-seven thousand, four hundred one".