42500823 has 4 divisors (see below), whose sum is σ = 56667768. Its totient is φ = 28333880.

The previous prime is 42500807. The next prime is 42500839. The reversal of 42500823 is 32800524.

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

It is an interprime number because it is at equal distance from previous prime (42500807) and next prime (42500839).

It is a cyclic number.

It is not a de Polignac number, because 42500823 - 2⁴ = 42500807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42500793 and 42500802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42500873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7083468 + ... + 7083473.

It is an arithmetic number, because the mean of its divisors is an integer number (14166942).

Almost surely, 2^42500823 is an apocalyptic number.

42500823 is a deficient number, since it is larger than the sum of its proper divisors (14166945).

42500823 is a wasteful number, since it uses less digits than its factorization.

42500823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14166944.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 42500823 is about 6519.2655261157. The cubic root of 42500823 is about 348.9788549407.

The spelling of 42500823 in words is "forty-two million, five hundred thousand, eight hundred twenty-three".