201554056 has 24 divisors (see below), whose sum is σ = 415394910. Its totient is φ = 91615040.

The previous prime is 201554053. The next prime is 201554063. The reversal of 201554056 is 650455102.

It can be written as a sum of positive squares in only one way, i.e., 172501956 + 29052100 = 13134^2 + 5390^2 .

It is a super-2 number, since 2×201554056² = 81248074980102272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201554051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103141 + ... + 105076.

Almost surely, 2^201554056 is an apocalyptic number.

It is an amenable number.

201554056 is an abundant number, since it is smaller than the sum of its proper divisors (213840854).

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

201554056 is a wasteful number, since it uses less digits than its factorization.

201554056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208245 (or 208230 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 201554056 is about 14196.9734802880. The cubic root of 201554056 is about 586.3143370578.

The spelling of 201554056 in words is "two hundred one million, five hundred fifty-four thousand, fifty-six".