520420253001 has 32 divisors (see below), whose sum is σ = 758859214848. Its totient is φ = 314621936640.

The previous prime is 520420252999. The next prime is 520420253051. The reversal of 520420253001 is 100352024025.

It is not a de Polignac number, because 520420253001 - 2¹ = 520420252999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520420253051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27085740 + ... + 27104946.

It is an arithmetic number, because the mean of its divisors is an integer number (23714350464).

Almost surely, 2^520420253001 is an apocalyptic number.

It is an amenable number.

520420253001 is a deficient number, since it is larger than the sum of its proper divisors (238438961847).

520420253001 is a wasteful number, since it uses less digits than its factorization.

520420253001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21221.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 520420253001 its reverse (100352024025), we get a palindrome (620772277026).

The spelling of 520420253001 in words is "five hundred twenty billion, four hundred twenty million, two hundred fifty-three thousand, one".