1561482252 has 72 divisors (see below), whose sum is σ = 4449807600. Its totient is φ = 473172480.

The previous prime is 1561482229. The next prime is 1561482271. The reversal of 1561482252 is 2522841651.

1561482252 is a `hidden beast` number, since 1 + 561 + 48 + 2 + 2 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46677 + ... + 72812.

Almost surely, 2^1561482252 is an apocalyptic number.

1561482252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1561482252 is an abundant number, since it is smaller than the sum of its proper divisors (2888325348).

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

1561482252 is a wasteful number, since it uses less digits than its factorization.

1561482252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119524 (or 119505 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 1561482252 is about 39515.5950480314. The cubic root of 1561482252 is about 1160.1452087344.

The spelling of 1561482252 in words is "one billion, five hundred sixty-one million, four hundred eighty-two thousand, two hundred fifty-two".