20088309825 has 60 divisors (see below), whose sum is σ = 38828431488. Its totient is φ = 10247925600.

The previous prime is 20088309821. The next prime is 20088309847. The reversal of 20088309825 is 52890388002.

It is not a de Polignac number, because 20088309825 - 2² = 20088309821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (20088309821) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 169081 + ... + 262230.

Almost surely, 2^20088309825 is an apocalyptic number.

20088309825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20088309825 is a deficient number, since it is larger than the sum of its proper divisors (18740121663).

20088309825 is a wasteful number, since it uses less digits than its factorization.

20088309825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431356 (or 431342 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 20088309825 in words is "twenty billion, eighty-eight million, three hundred nine thousand, eight hundred twenty-five".