20412124425 has 72 divisors (see below), whose sum is σ = 45581814720. Its totient is φ = 8482953600.

The previous prime is 20412124423. The next prime is 20412124429. The reversal of 20412124425 is 52442121402.

It is a happy number.

20412124425 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 212 + 442 + 5 = 666.

It is not a de Polignac number, because 20412124425 - 2¹ = 20412124423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20412124423) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 571770 + ... + 606419.

It is an arithmetic number, because the mean of its divisors is an integer number (633080760).

Almost surely, 2^20412124425 is an apocalyptic number.

20412124425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20412124425 is an abundant number, since it is smaller than the sum of its proper divisors (25169690295).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20412124425 is a wasteful number, since it uses less digits than its factorization.

20412124425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178223 (or 1178215 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 20412124425 its reverse (52442121402), we get a palindrome (72854245827).

The spelling of 20412124425 in words is "twenty billion, four hundred twelve million, one hundred twenty-four thousand, four hundred twenty-five".