521260002 has 16 divisors (see below), whose sum is σ = 1158355680. Its totient is φ = 173753316.

The previous prime is 521259989. The next prime is 521260013. The reversal of 521260002 is 200062125.

521260002 is a `hidden beast` number, since 52 + 12 + 600 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 4826428 + ... + 4826535.

It is an arithmetic number, because the mean of its divisors is an integer number (72397230).

Almost surely, 2^521260002 is an apocalyptic number.

521260002 is an abundant number, since it is smaller than the sum of its proper divisors (637095678).

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

521260002 is a wasteful number, since it uses less digits than its factorization.

521260002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9652974 (or 9652968 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 521260002 is about 22831.1191578512. The cubic root of 521260002 is about 804.7941307078.

The spelling of 521260002 in words is "five hundred twenty-one million, two hundred sixty thousand, two".