1556273952 has 96 divisors (see below), whose sum is σ = 4549426560. Its totient is φ = 517582080.

The previous prime is 1556273947. The next prime is 1556273969. The reversal of 1556273952 is 2593726551.

1556273952 is a `hidden beast` number, since 1 + 5 + 562 + 7 + 39 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×1556273952³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1556273898 and 1556273907.

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, 432802 + ... + 436382.

It is an arithmetic number, because the mean of its divisors is an integer number (47389860).

Almost surely, 2^1556273952 is an apocalyptic number.

1556273952 is a gapful number since it is divisible by the number (12) 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 1556273952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274713280).

1556273952 is an abundant number, since it is smaller than the sum of its proper divisors (2993152608).

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

1556273952 is a wasteful number, since it uses less digits than its factorization.

1556273952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103 (or 4089 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 1556273952 is about 39449.6381732456. The cubic root of 1556273952 is about 1158.8538897856.

The spelling of 1556273952 in words is "one billion, five hundred fifty-six million, two hundred seventy-three thousand, nine hundred fifty-two".