1552549680 has 400 divisors, whose sum is σ = 6144678144. Its totient is φ = 359631360.

The previous prime is 1552549673. The next prime is 1552549681. The reversal of 1552549680 is 869452551.

1552549680 is a `hidden beast` number, since 1 + 5 + 525 + 49 + 6 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1552549681) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1638967 + ... + 1639913.

Almost surely, 2^1552549680 is an apocalyptic number.

1552549680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552549680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3072339072).

1552549680 is an abundant number, since it is smaller than the sum of its proper divisors (4592128464).

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

1552549680 is a wasteful number, since it uses less digits than its factorization.

1552549680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The square root of 1552549680 is about 39402.4070330735. The cubic root of 1552549680 is about 1157.9287453807.

The spelling of 1552549680 in words is "one billion, five hundred fifty-two million, five hundred forty-nine thousand, six hundred eighty".