1552520220 has 48 divisors (see below), whose sum is σ = 4496960160. Its totient is φ = 399728896.

The previous prime is 1552520219. The next prime is 1552520231. The reversal of 1552520220 is 220252551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444387 + ... + 447866.

It is an arithmetic number, because the mean of its divisors is an integer number (93686670).

Almost surely, 2^1552520220 is an apocalyptic number.

1552520220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1552520220 is an abundant number, since it is smaller than the sum of its proper divisors (2944439940).

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

1552520220 is a wasteful number, since it uses less digits than its factorization.

1552520220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892294 (or 892292 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 1552520220 is about 39402.0331962705. The cubic root of 1552520220 is about 1157.9214213431.

Adding to 1552520220 its reverse (220252551), we get a palindrome (1772772771).

The spelling of 1552520220 in words is "one billion, five hundred fifty-two million, five hundred twenty thousand, two hundred twenty".