1422005025 has 24 divisors (see below), whose sum is σ = 2686913344. Its totient is φ = 650059200.

The previous prime is 1422005017. The next prime is 1422005027. The reversal of 1422005025 is 5205002241.

It is a happy number.

It is not a de Polignac number, because 1422005025 - 2³ = 1422005017 is a prime.

It is a super-2 number, since 2×1422005025² = 4044196582250501250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1422004992 and 1422005010.

It is not an unprimeable number, because it can be changed into a prime (1422005027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1353766 + ... + 1354815.

Almost surely, 2^1422005025 is an apocalyptic number.

1422005025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1422005025 is a deficient number, since it is larger than the sum of its proper divisors (1264908319).

1422005025 is a wasteful number, since it uses less digits than its factorization.

1422005025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708601 (or 2708596 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1422005025 is about 37709.4818977933. The cubic root of 1422005025 is about 1124.5196368945.

Adding to 1422005025 its reverse (5205002241), we get a palindrome (6627007266).

The spelling of 1422005025 in words is "one billion, four hundred twenty-two million, five thousand, twenty-five".