201232451425 has 48 divisors (see below), whose sum is σ = 266676114672. Its totient is φ = 150106521600.

The previous prime is 201232451419. The next prime is 201232451447. The reversal of 201232451425 is 524154232102.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 53340673936 + 147891777489 = 230956^2 + 384567^2 .

It is not a de Polignac number, because 201232451425 - 2³ = 201232451417 is a prime.

It is a Duffinian number.

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, 20172739 + ... + 20182711.

It is an arithmetic number, because the mean of its divisors is an integer number (5555752389).

Almost surely, 2^201232451425 is an apocalyptic number.

201232451425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201232451425 is a deficient number, since it is larger than the sum of its proper divisors (65443663247).

201232451425 is a wasteful number, since it uses less digits than its factorization.

201232451425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438 (or 10433 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 201232451425 its reverse (524154232102), we get a palindrome (725386683527).

The spelling of 201232451425 in words is "two hundred one billion, two hundred thirty-two million, four hundred fifty-one thousand, four hundred twenty-five".