201050551 has 8 divisors (see below), whose sum is σ = 229252464. Its totient is φ = 174668160.

The previous prime is 201050543. The next prime is 201050569. The reversal of 201050551 is 155050102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201050551 - 2³ = 201050543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201050501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454645 + ... + 455086.

It is an arithmetic number, because the mean of its divisors is an integer number (28656558).

Almost surely, 2^201050551 is an apocalyptic number.

201050551 is a deficient number, since it is larger than the sum of its proper divisors (28201913).

201050551 is a wasteful number, since it uses less digits than its factorization.

201050551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909761.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 201050551 is about 14179.2295629911. The cubic root of 201050551 is about 585.8257032681.

It can be divided in two parts, 201050 and 551, that added together give a square (201601 = 449²).

The spelling of 201050551 in words is "two hundred one million, fifty thousand, five hundred fifty-one".