1552985280 has 672 divisors, whose sum is σ = 6847027200. Its totient is φ = 313712640.

The previous prime is 1552985261. The next prime is 1552985299. The reversal of 1552985280 is 825892551.

It is a happy number.

1552985280 is a `hidden beast` number, since 1 + 552 + 98 + 5 + 2 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1552985261) and next prime (1552985299).

It is a tau number, because it is divible by the number of its divisors (672).

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10422646 + ... + 10422794.

Almost surely, 2^1552985280 is an apocalyptic number.

1552985280 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 1552985280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3423513600).

1552985280 is an abundant number, since it is smaller than the sum of its proper divisors (5294041920).

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

1552985280 is a wasteful number, since it uses less digits than its factorization.

1552985280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 1552985280 is about 39407.9342264981. The cubic root of 1552985280 is about 1158.0370288928.

The spelling of 1552985280 in words is "one billion, five hundred fifty-two million, nine hundred eighty-five thousand, two hundred eighty".