1425522323421 has 24 divisors (see below), whose sum is σ = 2355266746560. Its totient is φ = 813883726656.

The previous prime is 1425522323417. The next prime is 1425522323441. The reversal of 1425522323421 is 1243232255241.

1425522323421 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 5 + 223 + 2 + 3 + 421 = 666.

It is not a de Polignac number, because 1425522323421 - 2² = 1425522323417 is a prime.

It is a super-2 number, since 2×1425522323421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425522323441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9654736 + ... + 9801273.

It is an arithmetic number, because the mean of its divisors is an integer number (98136114440).

Almost surely, 2^{1425522323421} is an apocalyptic number.

It is an amenable number.

1425522323421 is a deficient number, since it is larger than the sum of its proper divisors (929744423139).

1425522323421 is a wasteful number, since it uses less digits than its factorization.

1425522323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19457185 (or 19457182 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 1425522323421 its reverse (1243232255241), we get a palindrome (2668754578662).

The spelling of 1425522323421 in words is "one trillion, four hundred twenty-five billion, five hundred twenty-two million, three hundred twenty-three thousand, four hundred twenty-one".