56142799 has 4 divisors (see below), whose sum is σ = 56350240. Its totient is φ = 55935360.

The previous prime is 56142781. The next prime is 56142803. The reversal of 56142799 is 99724165.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99724165 = 5 ⋅19944833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56142799 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56142199) 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, 103314 + ... + 103855.

It is an arithmetic number, because the mean of its divisors is an integer number (14087560).

Almost surely, 2^56142799 is an apocalyptic number.

56142799 is a deficient number, since it is larger than the sum of its proper divisors (207441).

56142799 is a wasteful number, since it uses less digits than its factorization.

56142799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207440.

The product of its digits is 136080, while the sum is 43.

The square root of 56142799 is about 7492.8498583650. The cubic root of 56142799 is about 382.9111565545.

The spelling of 56142799 in words is "fifty-six million, one hundred forty-two thousand, seven hundred ninety-nine".