201955450 has 24 divisors (see below), whose sum is σ = 376716960. Its totient is φ = 80550000.

The previous prime is 201955447. The next prime is 201955451. The reversal of 201955450 is 54559102.

It is not an unprimeable number, because it can be changed into a prime (201955451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12325 + ... + 23575.

It is an arithmetic number, because the mean of its divisors is an integer number (15696540).

Almost surely, 2^201955450 is an apocalyptic number.

201955450 is a deficient number, since it is larger than the sum of its proper divisors (174761510).

201955450 is a wasteful number, since it uses less digits than its factorization.

201955450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11622 (or 11617 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 201955450 is about 14211.1030535986. The cubic root of 201955450 is about 586.7032930961.

The spelling of 201955450 in words is "two hundred one million, nine hundred fifty-five thousand, four hundred fifty".