56263381 has 2 divisors, whose sum is σ = 56263382. Its totient is φ = 56263380.

The previous prime is 56263373. The next prime is 56263457. The reversal of 56263381 is 18336265.

56263381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 5924356 = 7095^2 + 2434^2 .

It is a cyclic number.

It is not a de Polignac number, because 56263381 - 2³ = 56263373 is a prime.

It is a super-2 number, since 2×56263381² = 6331136083102322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56263301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28131690 + 28131691.

It is an arithmetic number, because the mean of its divisors is an integer number (28131691).

Almost surely, 2^56263381 is an apocalyptic number.

It is an amenable number.

56263381 is a deficient number, since it is larger than the sum of its proper divisors (1).

56263381 is an equidigital number, since it uses as much as digits as its factorization.

56263381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 56263381 is about 7500.8920136208. The cubic root of 56263381 is about 383.1850959702.

It can be divided in two parts, 56263 and 381, that added together give a square (56644 = 238²).

The spelling of 56263381 in words is "fifty-six million, two hundred sixty-three thousand, three hundred eighty-one".