20125422 has 20 divisors (see below), whose sum is σ = 45096216. Its totient is φ = 6708420.

The previous prime is 20125411. The next prime is 20125439. The reversal of 20125422 is 22452102.

It is a super-2 number, since 2×20125422² = 810065221356168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20125395 and 20125404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61954 + ... + 62277.

Almost surely, 2^20125422 is an apocalyptic number.

20125422 is an abundant number, since it is smaller than the sum of its proper divisors (24970794).

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

20125422 is a wasteful number, since it uses less digits than its factorization.

20125422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124245 (or 124236 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20125422 is about 4486.1366452662. The cubic root of 20125422 is about 272.0079924843.

Adding to 20125422 its reverse (22452102), we get a palindrome (42577524).

The spelling of 20125422 in words is "twenty million, one hundred twenty-five thousand, four hundred twenty-two".