23051251545 has 64 divisors (see below), whose sum is σ = 43297382400. Its totient is φ = 10467576000.

The previous prime is 23051251501. The next prime is 23051251579. The reversal of 23051251545 is 54515215032.

It is not a de Polignac number, because 23051251545 - 2⁶ = 23051251481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 762060 + ... + 791730.

It is an arithmetic number, because the mean of its divisors is an integer number (676521600).

Almost surely, 2^23051251545 is an apocalyptic number.

It is an amenable number.

23051251545 is a deficient number, since it is larger than the sum of its proper divisors (20246130855).

23051251545 is a wasteful number, since it uses less digits than its factorization.

23051251545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29851 (or 29837 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

Adding to 23051251545 its reverse (54515215032), we get a palindrome (77566466577).

The spelling of 23051251545 in words is "twenty-three billion, fifty-one million, two hundred fifty-one thousand, five hundred forty-five".