202240421325 has 30 divisors (see below), whose sum is σ = 374619174314. Its totient is φ = 107861556960.

The previous prime is 202240421287. The next prime is 202240421381. The reversal of 202240421325 is 523124042202.

202240421325 is a `hidden beast` number, since 2 + 0 + 22 + 404 + 213 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 52930824489 + 149309596836 = 230067^2 + 386406^2 .

It is not a de Polignac number, because 202240421325 - 2⁶ = 202240421261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 49933882 + ... + 49937931.

Almost surely, 2^202240421325 is an apocalyptic number.

202240421325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

202240421325 is a deficient number, since it is larger than the sum of its proper divisors (172378752989).

202240421325 is an equidigital number, since it uses as much as digits as its factorization.

202240421325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99871835 (or 99871821 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 202240421325 its reverse (523124042202), we get a palindrome (725364463527).

The spelling of 202240421325 in words is "two hundred two billion, two hundred forty million, four hundred twenty-one thousand, three hundred twenty-five".