56161200 has 120 divisors (see below), whose sum is σ = 190554768. Its totient is φ = 14090240.

The previous prime is 56161199. The next prime is 56161201. The reversal of 56161200 is 216165.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56161199) and next prime (56161201).

It is a tau number, because it is divible by the number of its divisors (120).

It is not an unprimeable number, because it can be changed into a prime (56161201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19024 + ... + 21776.

Almost surely, 2^56161200 is an apocalyptic number.

56161200 is a gapful number since it is divisible by the number (50) 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 56161200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95277384).

56161200 is an abundant number, since it is smaller than the sum of its proper divisors (134393568).

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

56161200 is a wasteful number, since it uses less digits than its factorization.

56161200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2780 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 56161200 is about 7494.0776617273. The cubic root of 56161200 is about 382.9529854781.

Adding to 56161200 its reverse (216165), we get a palindrome (56377365).

The spelling of 56161200 in words is "fifty-six million, one hundred sixty-one thousand, two hundred".