23071551725 has 12 divisors (see below), whose sum is σ = 28610645364. Its totient is φ = 18456001920.

The previous prime is 23071551709. The next prime is 23071551733. The reversal of 23071551725 is 52715517032.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8930061001 + 14141490724 = 94499^2 + 118918^2 .

It is not a de Polignac number, because 23071551725 - 2⁴ = 23071551709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 603377 + ... + 640473.

It is an arithmetic number, because the mean of its divisors is an integer number (2384220447).

Almost surely, 2^23071551725 is an apocalyptic number.

23071551725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23071551725 is a deficient number, since it is larger than the sum of its proper divisors (5539093639).

23071551725 is a wasteful number, since it uses less digits than its factorization.

23071551725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61984 (or 61979 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 38.

The spelling of 23071551725 in words is "twenty-three billion, seventy-one million, five hundred fifty-one thousand, seven hundred twenty-five".