1556410056 has 64 divisors (see below), whose sum is σ = 4026892800. Its totient is φ = 500774400.

The previous prime is 1556410049. The next prime is 1556410103. The reversal of 1556410056 is 6500146551.

It is a junction number, because it is equal to n+sod(n) for n = 1556409999 and 1556410026.

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, 310740 + ... + 315708.

It is an arithmetic number, because the mean of its divisors is an integer number (62920200).

Almost surely, 2^1556410056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1556410056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2013446400).

1556410056 is an abundant number, since it is smaller than the sum of its proper divisors (2470482744).

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

1556410056 is a wasteful number, since it uses less digits than its factorization.

1556410056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5430 (or 5426 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1556410056 is about 39451.3631703646. The cubic root of 1556410056 is about 1158.8876713385.

The spelling of 1556410056 in words is "one billion, five hundred fifty-six million, four hundred ten thousand, fifty-six".