56987269 has 4 divisors (see below), whose sum is σ = 58825600. Its totient is φ = 55148940.

The previous prime is 56987267. The next prime is 56987299. The reversal of 56987269 is 96278965.

It is a happy number.

56987269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96278965 = 5 ⋅19255793.

It is a cyclic number.

It is not a de Polignac number, because 56987269 - 2¹ = 56987267 is a prime.

It is a super-2 number, since 2×56987269² = 6495097656156722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56987267) 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 in 3 ways as a sum of consecutive naturals, for example, 919119 + ... + 919180.

It is an arithmetic number, because the mean of its divisors is an integer number (14706400).

Almost surely, 2^56987269 is an apocalyptic number.

It is an amenable number.

56987269 is a deficient number, since it is larger than the sum of its proper divisors (1838331).

56987269 is a wasteful number, since it uses less digits than its factorization.

56987269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838330.

The product of its digits is 1632960, while the sum is 52.

The square root of 56987269 is about 7548.9912571151. The cubic root of 56987269 is about 384.8214587908.

The spelling of 56987269 in words is "fifty-six million, nine hundred eighty-seven thousand, two hundred sixty-nine".