521225541032 has 32 divisors (see below), whose sum is σ = 1117379683200. Its totient is φ = 223288812864.

The previous prime is 521225540981. The next prime is 521225541043. The reversal of 521225541032 is 230145522125.

It is a super-2 number, since 2×521225541032² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 521225541032.

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, 1814228 + ... + 2081795.

It is an arithmetic number, because the mean of its divisors is an integer number (34918115100).

Almost surely, 2^521225541032 is an apocalyptic number.

It is an amenable number.

521225541032 is an abundant number, since it is smaller than the sum of its proper divisors (596154142168).

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

521225541032 is a wasteful number, since it uses less digits than its factorization.

521225541032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898425 (or 3898421 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 521225541032 in words is "five hundred twenty-one billion, two hundred twenty-five million, five hundred forty-one thousand, thirty-two".