521452950 has 48 divisors (see below), whose sum is σ = 1305797376. Its totient is φ = 137700000.

The previous prime is 521452933. The next prime is 521452961. The reversal of 521452950 is 59254125.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1426 + ... + 32325.

It is an arithmetic number, because the mean of its divisors is an integer number (27204112).

Almost surely, 2^521452950 is an apocalyptic number.

521452950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 521452950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652898688).

521452950 is an abundant number, since it is smaller than the sum of its proper divisors (784344426).

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

521452950 is a wasteful number, since it uses less digits than its factorization.

521452950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33869 (or 33864 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 521452950 is about 22835.3443153371. The cubic root of 521452950 is about 804.8934184986.

The spelling of 521452950 in words is "five hundred twenty-one million, four hundred fifty-two thousand, nine hundred fifty".