20623545325 has 12 divisors (see below), whose sum is σ = 27077502420. Its totient is φ = 15528316160.

The previous prime is 20623545311. The next prime is 20623545343. The reversal of 20623545325 is 52354532602.

It can be written as a sum of positive squares in 6 ways, for example, as 2430391401 + 18193153924 = 49299^2 + 134882^2 .

It is not a de Polignac number, because 20623545325 - 2¹¹ = 20623543277 is a prime.

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, 24262570 + ... + 24263419.

It is an arithmetic number, because the mean of its divisors is an integer number (2256458535).

Almost surely, 2^20623545325 is an apocalyptic number.

20623545325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20623545325 is a deficient number, since it is larger than the sum of its proper divisors (6453957095).

20623545325 is a wasteful number, since it uses less digits than its factorization.

20623545325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48526016 (or 48526011 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 20623545325 in words is "twenty billion, six hundred twenty-three million, five hundred forty-five thousand, three hundred twenty-five".