1552220000 has 60 divisors (see below), whose sum is σ = 3818743236. Its totient is φ = 620880000.

The previous prime is 1552219993. The next prime is 1552220009. The reversal of 1552220000 is 222551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552220009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18806 + ... + 58805.

Almost surely, 2^1552220000 is an apocalyptic number.

1552220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1552220000 is an abundant number, since it is smaller than the sum of its proper divisors (2266523236).

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

1552220000 is an frugal number, since it uses more digits than its factorization.

1552220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77641 (or 77618 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1552220000 is about 39398.2233101951. The cubic root of 1552220000 is about 1157.8467784979.

Adding to 1552220000 its reverse (222551), we get a palindrome (1552442551).

The spelling of 1552220000 in words is "one billion, five hundred fifty-two million, two hundred twenty thousand".