201522050 has 12 divisors (see below), whose sum is σ = 374831106. Its totient is φ = 80608800.

The previous prime is 201522049. The next prime is 201522089. The reversal of 201522050 is 50225102.

It can be written as a sum of positive squares in 3 ways, for example, as 74666881 + 126855169 = 8641^2 + 11263^2 .

It is a super-2 number, since 2×201522050² = 81222273272405000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2015171 + ... + 2015270.

Almost surely, 2^201522050 is an apocalyptic number.

201522050 is a deficient number, since it is larger than the sum of its proper divisors (173309056).

201522050 is a wasteful number, since it uses less digits than its factorization.

201522050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030453 (or 4030448 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 201522050 is about 14195.8462234556. The cubic root of 201522050 is about 586.2833006029.

Adding to 201522050 its reverse (50225102), we get a palindrome (251747152).

The spelling of 201522050 in words is "two hundred one million, five hundred twenty-two thousand, fifty".