56270987 has 4 divisors (see below), whose sum is σ = 56448816. Its totient is φ = 56093160.

The previous prime is 56270959. The next prime is 56270999. The reversal of 56270987 is 78907265.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56270987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56270917) 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, 88439 + ... + 89072.

It is an arithmetic number, because the mean of its divisors is an integer number (14112204).

Almost surely, 2^56270987 is an apocalyptic number.

56270987 is a deficient number, since it is larger than the sum of its proper divisors (177829).

56270987 is a wasteful number, since it uses less digits than its factorization.

56270987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177828.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 56270987 is about 7501.3990028527. The cubic root of 56270987 is about 383.2023622303.

The spelling of 56270987 in words is "fifty-six million, two hundred seventy thousand, nine hundred eighty-seven".