23515400503541 has 2 divisors, whose sum is σ = 23515400503542. Its totient is φ = 23515400503540.

The previous prime is 23515400503537. The next prime is 23515400503559. The reversal of 23515400503541 is 14530500451532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22532784290641 + 982616212900 = 4746871^2 + 991270^2 .

It is a cyclic number.

It is not a de Polignac number, because 23515400503541 - 2² = 23515400503537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23515400503495 and 23515400503504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23515400503531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11757700251770 + 11757700251771.

It is an arithmetic number, because the mean of its divisors is an integer number (11757700251771).

Almost surely, 2^{23515400503541} is an apocalyptic number.

It is an amenable number.

23515400503541 is a deficient number, since it is larger than the sum of its proper divisors (1).

23515400503541 is an equidigital number, since it uses as much as digits as its factorization.

23515400503541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 23515400503541 in words is "twenty-three trillion, five hundred fifteen billion, four hundred million, five hundred three thousand, five hundred forty-one".