56142266 has 8 divisors (see below), whose sum is σ = 84293460. Its totient is φ = 28044448.

The previous prime is 56142263. The next prime is 56142269. The reversal of 56142266 is 66224165.

It is an interprime number because it is at equal distance from previous prime (56142263) and next prime (56142269).

It can be written as a sum of positive squares in 2 ways, for example, as 55279225 + 863041 = 7435^2 + 929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56142266² = 6303908063229512, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56142263) 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, 10601 + ... + 14988.

Almost surely, 2^56142266 is an apocalyptic number.

56142266 is a deficient number, since it is larger than the sum of its proper divisors (28151194).

56142266 is a wasteful number, since it uses less digits than its factorization.

56142266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26688.

The product of its digits is 17280, while the sum is 32.

The square root of 56142266 is about 7492.8142910391. The cubic root of 56142266 is about 382.9099448093.

The spelling of 56142266 in words is "fifty-six million, one hundred forty-two thousand, two hundred sixty-six".