20364471425 has 12 divisors (see below), whose sum is σ = 25867846956. Its totient is φ = 15894220800.

The previous prime is 20364471419. The next prime is 20364471431. The reversal of 20364471425 is 52417446302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20364471419) and next prime (20364471431).

It can be written as a sum of positive squares in 6 ways, for example, as 5521678864 + 14842792561 = 74308^2 + 121831^2 .

It is not a de Polignac number, because 20364471425 - 2²² = 20360277121 is a prime.

It is a Duffinian number.

It is a Curzon 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, 9932864 + ... + 9934913.

It is an arithmetic number, because the mean of its divisors is an integer number (2155653913).

Almost surely, 2^20364471425 is an apocalyptic number.

20364471425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20364471425 is a deficient number, since it is larger than the sum of its proper divisors (5503375531).

20364471425 is a wasteful number, since it uses less digits than its factorization.

20364471425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19867828 (or 19867823 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 20364471425 in words is "twenty billion, three hundred sixty-four million, four hundred seventy-one thousand, four hundred twenty-five".