20422514425 has 12 divisors (see below), whose sum is σ = 25328545660. Its totient is φ = 16335025920.

The previous prime is 20422514423. The next prime is 20422514461. The reversal of 20422514425 is 52441522402.

It can be written as a sum of positive squares in 6 ways, for example, as 730566841 + 19691947584 = 27029^2 + 140328^2 .

It is not a de Polignac number, because 20422514425 - 2¹ = 20422514423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20422514423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70429 + ... + 214021.

Almost surely, 2^20422514425 is an apocalyptic number.

20422514425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20422514425 is a deficient number, since it is larger than the sum of its proper divisors (4906031235).

20422514425 is a wasteful number, since it uses less digits than its factorization.

20422514425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149292 (or 149287 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

The spelling of 20422514425 in words is "twenty billion, four hundred twenty-two million, five hundred fourteen thousand, four hundred twenty-five".