56361280 has 28 divisors (see below), whose sum is σ = 134211060. Its totient is φ = 22544384.

The previous prime is 56361269. The next prime is 56361281. The reversal of 56361280 is 8216365.

It can be written as a sum of positive squares in 2 ways, for example, as 28987456 + 27373824 = 5384^2 + 5232^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56361281) 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, 87745 + ... + 88384.

Almost surely, 2^56361280 is an apocalyptic number.

It is an amenable number.

56361280 is an abundant number, since it is smaller than the sum of its proper divisors (77849780).

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

56361280 is a wasteful number, since it uses less digits than its factorization.

56361280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176146 (or 176136 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 56361280 is about 7507.4150011838. The cubic root of 56361280 is about 383.4072161728.

The spelling of 56361280 in words is "fifty-six million, three hundred sixty-one thousand, two hundred eighty".