56238369 has 16 divisors (see below), whose sum is σ = 82649280. Its totient is φ = 33730560.

The previous prime is 56238359. The next prime is 56238379. The reversal of 56238369 is 96383265.

It is an interprime number because it is at equal distance from previous prime (56238359) and next prime (56238379).

It is not a de Polignac number, because 56238369 - 2⁷ = 56238241 is a prime.

It is a super-2 number, since 2×56238369² = 6325508295560322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56238369.

It is not an unprimeable number, because it can be changed into a prime (56238349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5584 + ... + 11985.

It is an arithmetic number, because the mean of its divisors is an integer number (5165580).

Almost surely, 2^56238369 is an apocalyptic number.

It is an amenable number.

56238369 is a deficient number, since it is larger than the sum of its proper divisors (26410911).

56238369 is a wasteful number, since it uses less digits than its factorization.

56238369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17680.

The product of its digits is 233280, while the sum is 42.

The square root of 56238369 is about 7499.2245599128. The cubic root of 56238369 is about 383.1283056504.

Subtracting 56238369 from its reverse (96383265), we obtain a square (40144896 = 6336²).

The spelling of 56238369 in words is "fifty-six million, two hundred thirty-eight thousand, three hundred sixty-nine".