1550365056 has 256 divisors, whose sum is σ = 4896000000. Its totient is φ = 481904640.

The previous prime is 1550365039. The next prime is 1550365079. The reversal of 1550365056 is 6505630551.

1550365056 is a `hidden beast` number, since 1 + 550 + 3 + 6 + 50 + 56 = 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 1550365056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3106695 + ... + 3107193.

It is an arithmetic number, because the mean of its divisors is an integer number (19125000).

Almost surely, 2^1550365056 is an apocalyptic number.

1550365056 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 1550365056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2448000000).

1550365056 is an abundant number, since it is smaller than the sum of its proper divisors (3345634944).

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

1550365056 is a wasteful number, since it uses less digits than its factorization.

1550365056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 1550365056 is about 39374.6753129470. The cubic root of 1550365056 is about 1157.3853754668.

The spelling of 1550365056 in words is "one billion, five hundred fifty million, three hundred sixty-five thousand, fifty-six".