23555222461 has 8 divisors (see below), whose sum is σ = 25178860224. Its totient is φ = 21981542880.

The previous prime is 23555222459. The next prime is 23555222473. The reversal of 23555222461 is 16422255532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23555222461 - 2¹ = 23555222459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23555222461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23555222401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12488571 + ... + 12490456.

It is an arithmetic number, because the mean of its divisors is an integer number (3147357528).

Almost surely, 2^23555222461 is an apocalyptic number.

It is an amenable number.

23555222461 is a deficient number, since it is larger than the sum of its proper divisors (1623637763).

23555222461 is a wasteful number, since it uses less digits than its factorization.

23555222461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24979091.

The product of its digits is 144000, while the sum is 37.

Adding to 23555222461 its reverse (16422255532), we get a palindrome (39977477993).

It can be divided in two parts, 23555 and 222461, that added together give a square (246016 = 496²).

The spelling of 23555222461 in words is "twenty-three billion, five hundred fifty-five million, two hundred twenty-two thousand, four hundred sixty-one".