521950950 has 72 divisors (see below), whose sum is σ = 1413504768. Its totient is φ = 138075840.

The previous prime is 521950927. The next prime is 521950981. The reversal of 521950950 is 59059125.

It is a hoax number, since the sum of its digits (36) 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 35 ways as a sum of consecutive naturals, for example, 52584 + ... + 61716.

Almost surely, 2^521950950 is an apocalyptic number.

521950950 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 521950950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706752384).

521950950 is an abundant number, since it is smaller than the sum of its proper divisors (891553818).

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

521950950 is a wasteful number, since it uses less digits than its factorization.

521950950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278 (or 9270 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 36.

The square root of 521950950 is about 22846.2458622856. The cubic root of 521950950 is about 805.1495677748.

It can be divided in two parts, 5219 and 50950, that added together give a square (56169 = 237²).

The spelling of 521950950 in words is "five hundred twenty-one million, nine hundred fifty thousand, nine hundred fifty".