23403555252445 has 4 divisors (see below), whose sum is σ = 28084266302940. Its totient is φ = 18722844201952.

The previous prime is 23403555252391. The next prime is 23403555252479. The reversal of 23403555252445 is 54425255530432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7653666108676 + 15749889143769 = 2766526^2 + 3968613^2 .

It is a cyclic number.

It is not a de Polignac number, because 23403555252445 - 2²⁵ = 23403521698013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340355525240 + ... + 2340355525249.

It is an arithmetic number, because the mean of its divisors is an integer number (7021066575735).

Almost surely, 2^{23403555252445} is an apocalyptic number.

It is an amenable number.

23403555252445 is a deficient number, since it is larger than the sum of its proper divisors (4680711050495).

23403555252445 is an equidigital number, since it uses as much as digits as its factorization.

23403555252445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680711050494.

The product of its (nonzero) digits is 14400000, while the sum is 49.

The spelling of 23403555252445 in words is "twenty-three trillion, four hundred three billion, five hundred fifty-five million, two hundred fifty-two thousand, four hundred forty-five".