520420253000 has 32 divisors (see below), whose sum is σ = 1217783394360. Its totient is φ = 208168100800.

The previous prime is 520420252999. The next prime is 520420253051. The reversal of 520420253000 is 352024025.

It can be written as a sum of positive squares in 4 ways, for example, as 116659134916 + 403761118084 = 341554^2 + 635422^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260209127 + ... + 260211126.

Almost surely, 2^520420253000 is an apocalyptic number.

520420253000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520420253000 is an abundant number, since it is smaller than the sum of its proper divisors (697363141360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520420253000 is a wasteful number, since it uses less digits than its factorization.

520420253000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520420274 (or 520420260 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

Adding to 520420253000 its reverse (352024025), we get a palindrome (520772277025).

The spelling of 520420253000 in words is "five hundred twenty billion, four hundred twenty million, two hundred fifty-three thousand".