201553455 has 32 divisors (see below), whose sum is σ = 329853888. Its totient is φ = 105062400.

The previous prime is 201553409. The next prime is 201553459. The reversal of 201553455 is 554355102.

It is a happy number.

201553455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201553455 - 2⁸ = 201553199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201553459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165007 + ... + 166223.

It is an arithmetic number, because the mean of its divisors is an integer number (10307934).

Almost surely, 2^201553455 is an apocalyptic number.

201553455 is a deficient number, since it is larger than the sum of its proper divisors (128300433).

201553455 is a wasteful number, since it uses less digits than its factorization.

201553455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 201553455 is about 14196.9523137890. The cubic root of 201553455 is about 586.3137542939.

The spelling of 201553455 in words is "two hundred one million, five hundred fifty-three thousand, four hundred fifty-five".