521442950 has 48 divisors (see below), whose sum is σ = 1117261824. Its totient is φ = 177357600.

The previous prime is 521442937. The next prime is 521442953. The reversal of 521442950 is 59244125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521442953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38585 + ... + 50315.

It is an arithmetic number, because the mean of its divisors is an integer number (23276288).

Almost surely, 2^521442950 is an apocalyptic number.

521442950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

521442950 is an abundant number, since it is smaller than the sum of its proper divisors (595818874).

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

521442950 is a wasteful number, since it uses less digits than its factorization.

521442950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11877 (or 11872 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 521442950 is about 22835.1253554694. The cubic root of 521442950 is about 804.8882732689. Note that the first 3 decimals are identical.

The spelling of 521442950 in words is "five hundred twenty-one million, four hundred forty-two thousand, nine hundred fifty".