201456211425 has 48 divisors (see below), whose sum is σ = 383562212352. Its totient is φ = 91391227200.

The previous prime is 201456211391. The next prime is 201456211447. The reversal of 201456211425 is 524112654102.

It is a happy number.

It is not a de Polignac number, because 201456211425 - 2²² = 201452017121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1395829 + ... + 1533378.

It is an arithmetic number, because the mean of its divisors is an integer number (7990879424).

Almost surely, 2^201456211425 is an apocalyptic number.

201456211425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201456211425 is a deficient number, since it is larger than the sum of its proper divisors (182106000927).

201456211425 is a wasteful number, since it uses less digits than its factorization.

201456211425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929358 (or 2929353 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 201456211425 its reverse (524112654102), we get a palindrome (725568865527).

The spelling of 201456211425 in words is "two hundred one billion, four hundred fifty-six million, two hundred eleven thousand, four hundred twenty-five".