243011552425 has 6 divisors (see below), whose sum is σ = 301334325038. Its totient is φ = 194409241920.

The previous prime is 243011552419. The next prime is 243011552449. The reversal of 243011552425 is 524255110342.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 54958362624 + 188053189801 = 234432^2 + 433651^2 .

It is not a de Polignac number, because 243011552425 - 2²³ = 243003163817 is a prime.

It is a super-2 number, since 2×243011552425² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4860231024 + ... + 4860231073.

Almost surely, 2^243011552425 is an apocalyptic number.

243011552425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243011552425 is a deficient number, since it is larger than the sum of its proper divisors (58322772613).

243011552425 is an equidigital number, since it uses as much as digits as its factorization.

243011552425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9720462107 (or 9720462102 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 243011552425 its reverse (524255110342), we get a palindrome (767266662767).

The spelling of 243011552425 in words is "two hundred forty-three billion, eleven million, five hundred fifty-two thousand, four hundred twenty-five".