56215241 has 2 divisors, whose sum is σ = 56215242. Its totient is φ = 56215240.

The previous prime is 56215231. The next prime is 56215279. The reversal of 56215241 is 14251265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40691641 + 15523600 = 6379^2 + 3940^2 .

It is a cyclic number.

It is not a de Polignac number, because 56215241 - 2⁶ = 56215177 is a prime.

It is equal to p_3350483 and since 56215241 and 3350483 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56215241.

It is not a weakly prime, because it can be changed into another prime (56215231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28107620 + 28107621.

It is an arithmetic number, because the mean of its divisors is an integer number (28107621).

Almost surely, 2^56215241 is an apocalyptic number.

It is an amenable number.

56215241 is a deficient number, since it is larger than the sum of its proper divisors (1).

56215241 is an equidigital number, since it uses as much as digits as its factorization.

56215241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 56215241 is about 7497.6823752410. The cubic root of 56215241 is about 383.0757780103.

The spelling of 56215241 in words is "fifty-six million, two hundred fifteen thousand, two hundred forty-one".