211525305452 has 12 divisors (see below), whose sum is σ = 375240097176. Its totient is φ = 104313849120.

The previous prime is 211525305451. The next prime is 211525305463. The reversal of 211525305452 is 254503525112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (211525305451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362200574 + ... + 362201157.

It is an arithmetic number, because the mean of its divisors is an integer number (31270008098).

Almost surely, 2^211525305452 is an apocalyptic number.

It is an amenable number.

211525305452 is a deficient number, since it is larger than the sum of its proper divisors (163714791724).

211525305452 is a wasteful number, since it uses less digits than its factorization.

211525305452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724401808 (or 724401806 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 211525305452 in words is "two hundred eleven billion, five hundred twenty-five million, three hundred five thousand, four hundred fifty-two".