56061556 has 12 divisors (see below), whose sum is σ = 98622720. Its totient is φ = 27883640.

The previous prime is 56061541. The next prime is 56061559. The reversal of 56061556 is 65516065.

It is a super-2 number, since 2×56061556² = 6285796122282272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56061559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35926 + ... + 37453.

It is an arithmetic number, because the mean of its divisors is an integer number (8218560).

Almost surely, 2^56061556 is an apocalyptic number.

It is an amenable number.

56061556 is a deficient number, since it is larger than the sum of its proper divisors (42561164).

56061556 is a wasteful number, since it uses less digits than its factorization.

56061556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73574 (or 73572 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 56061556 is about 7487.4265271854. The cubic root of 56061556 is about 382.7263666416.

The spelling of 56061556 in words is "fifty-six million, sixty-one thousand, five hundred fifty-six".