20413205346425 has 12 divisors (see below), whose sum is σ = 25596783336060. Its totient is φ = 16147074789120.

The previous prime is 20413205346419. The next prime is 20413205346431. The reversal of 20413205346425 is 52464350231402.

It is an interprime number because it is at equal distance from previous prime (20413205346419) and next prime (20413205346431).

It can be written as a sum of positive squares in 6 ways, for example, as 6099793490176 + 14313411856249 = 2469776^2 + 3783307^2 .

It is not a de Polignac number, because 20413205346425 - 2³² = 20408910379129 is a prime.

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, 4587234932 + ... + 4587239381.

It is an arithmetic number, because the mean of its divisors is an integer number (2133065278005).

Almost surely, 2^{20413205346425} is an apocalyptic number.

20413205346425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20413205346425 is a deficient number, since it is larger than the sum of its proper divisors (5183577989635).

20413205346425 is an equidigital number, since it uses as much as digits as its factorization.

20413205346425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9174474412 (or 9174474407 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 20413205346425 its reverse (52464350231402), we get a palindrome (72877555577827).

The spelling of 20413205346425 in words is "twenty trillion, four hundred thirteen billion, two hundred five million, three hundred forty-six thousand, four hundred twenty-five".