1555041456 has 80 divisors (see below), whose sum is σ = 4474044000. Its totient is φ = 517128192.

The previous prime is 1555041427. The next prime is 1555041461. The reversal of 1555041456 is 6541405551.

1555041456 is a `hidden beast` number, since 1 + 5 + 5 + 504 + 145 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1555041456.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189960 + ... + 197976.

It is an arithmetic number, because the mean of its divisors is an integer number (55925550).

Almost surely, 2^1555041456 is an apocalyptic number.

1555041456 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 1555041456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2237022000).

1555041456 is an abundant number, since it is smaller than the sum of its proper divisors (2919002544).

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

1555041456 is a wasteful number, since it uses less digits than its factorization.

1555041456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8483 (or 8471 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 1555041456 is about 39434.0139473526. The cubic root of 1555041456 is about 1158.5478896772.

The spelling of 1555041456 in words is "one billion, five hundred fifty-five million, forty-one thousand, four hundred fifty-six".