1522225540 has 48 divisors (see below), whose sum is σ = 3521859264. Its totient is φ = 548048000.

The previous prime is 1522225531. The next prime is 1522225553. The reversal of 1522225540 is 455222251.

It is a junction number, because it is equal to n+sod(n) for n = 1522225499 and 1522225508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12034 + ... + 56473.

It is an arithmetic number, because the mean of its divisors is an integer number (73372068).

Almost surely, 2^1522225540 is an apocalyptic number.

1522225540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1522225540 is an abundant number, since it is smaller than the sum of its proper divisors (1999633724).

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

1522225540 is a wasteful number, since it uses less digits than its factorization.

1522225540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68628 (or 68626 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1522225540 is about 39015.7088875750. The cubic root of 1522225540 is about 1150.3403000470.

Adding to 1522225540 its reverse (455222251), we get a palindrome (1977447791).

The spelling of 1522225540 in words is "one billion, five hundred twenty-two million, two hundred twenty-five thousand, five hundred forty".