23555202425 has 12 divisors (see below), whose sum is σ = 29210477136. Its totient is φ = 18842854800.

The previous prime is 23555202403. The next prime is 23555202427. The reversal of 23555202425 is 52420255532.

It is not a de Polignac number, because 23555202425 - 2⁶ = 23555202361 is a prime.

It is a super-2 number, since 2×23555202425² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23555202427) 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, 514730 + ... + 558620.

It is an arithmetic number, because the mean of its divisors is an integer number (2434206428).

Almost surely, 2^23555202425 is an apocalyptic number.

23555202425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23555202425 is a deficient number, since it is larger than the sum of its proper divisors (5655274711).

23555202425 is a wasteful number, since it uses less digits than its factorization.

23555202425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65368 (or 65363 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 35.

Adding to 23555202425 its reverse (52420255532), we get a palindrome (75975457957).

The spelling of 23555202425 in words is "twenty-three billion, five hundred fifty-five million, two hundred two thousand, four hundred twenty-five".