1561822482 has 32 divisors (see below), whose sum is σ = 3410141184. Its totient is φ = 472928400.

The previous prime is 1561822481. The next prime is 1561822519. The reversal of 1561822482 is 2842281651.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1561822482.

It is not an unprimeable number, because it can be changed into a prime (1561822481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89043 + ... + 105129.

It is an arithmetic number, because the mean of its divisors is an integer number (106566912).

Almost surely, 2^1561822482 is an apocalyptic number.

1561822482 is an abundant number, since it is smaller than the sum of its proper divisors (1848318702).

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

1561822482 is a wasteful number, since it uses less digits than its factorization.

1561822482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17574.

The product of its digits is 61440, while the sum is 39.

The square root of 1561822482 is about 39519.8998227475. The cubic root of 1561822482 is about 1160.2294636231.

The spelling of 1561822482 in words is "one billion, five hundred sixty-one million, eight hundred twenty-two thousand, four hundred eighty-two".