201253055531 has 16 divisors (see below), whose sum is σ = 224828469888. Its totient is φ = 178564176000.

The previous prime is 201253055473. The next prime is 201253055533. The reversal of 201253055531 is 135550352102.

It is a cyclic number.

It is not a de Polignac number, because 201253055531 - 2²² = 201248861227 is a prime.

It is a super-2 number, since 2×201253055531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201253055533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449456 + ... + 777506.

It is an arithmetic number, because the mean of its divisors is an integer number (14051779368).

Almost surely, 2^201253055531 is an apocalyptic number.

201253055531 is a deficient number, since it is larger than the sum of its proper divisors (23575414357).

201253055531 is a wasteful number, since it uses less digits than its factorization.

201253055531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329402.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 201253055531 in words is "two hundred one billion, two hundred fifty-three million, fifty-five thousand, five hundred thirty-one".