201555412 has 6 divisors (see below), whose sum is σ = 352721978. Its totient is φ = 100777704.

The previous prime is 201555379. The next prime is 201555413. The reversal of 201555412 is 214555102.

201555412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 114618436 + 86936976 = 10706^2 + 9324^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201555413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25194423 + ... + 25194430.

Almost surely, 2^201555412 is an apocalyptic number.

It is an amenable number.

201555412 is a deficient number, since it is larger than the sum of its proper divisors (151166566).

201555412 is a wasteful number, since it uses less digits than its factorization.

201555412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50388857 (or 50388855 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 201555412 is about 14197.0212368651. The cubic root of 201555412 is about 586.3156519084.

The spelling of 201555412 in words is "two hundred one million, five hundred fifty-five thousand, four hundred twelve".