1551848256 has 336 divisors, whose sum is σ = 5477621760. Its totient is φ = 410158080.

The previous prime is 1551848159. The next prime is 1551848293. The reversal of 1551848256 is 6528481551.

1551848256 is a `hidden beast` number, since 1 + 5 + 518 + 4 + 82 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3600361 + ... + 3600791.

Almost surely, 2^1551848256 is an apocalyptic number.

1551848256 is a gapful number since it is divisible by the number (16) 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 1551848256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2738810880).

1551848256 is an abundant number, since it is smaller than the sum of its proper divisors (3925773504).

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

1551848256 is a wasteful number, since it uses less digits than its factorization.

1551848256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 509 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 1551848256 is about 39393.5052515005. The cubic root of 1551848256 is about 1157.7543395055.

The spelling of 1551848256 in words is "one billion, five hundred fifty-one million, eight hundred forty-eight thousand, two hundred fifty-six".