20246864025 has 48 divisors (see below), whose sum is σ = 34748400960. Its totient is φ = 10390060800.

The previous prime is 20246864023. The next prime is 20246864087. The reversal of 20246864025 is 52046864202.

It is not a de Polignac number, because 20246864025 - 2¹ = 20246864023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20246864023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 621390 + ... + 653160.

It is an arithmetic number, because the mean of its divisors is an integer number (723925020).

Almost surely, 2^20246864025 is an apocalyptic number.

20246864025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20246864025 is a deficient number, since it is larger than the sum of its proper divisors (14501536935).

20246864025 is a wasteful number, since it uses less digits than its factorization.

20246864025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32106 (or 32101 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 20246864025 in words is "twenty billion, two hundred forty-six million, eight hundred sixty-four thousand, twenty-five".