42500215 has 8 divisors (see below), whose sum is σ = 51144480. Its totient is φ = 33904032.

The previous prime is 42500203. The next prime is 42500219. The reversal of 42500215 is 51200524.

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

It is a cyclic number.

It is not a de Polignac number, because 42500215 - 2¹⁷ = 42369143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42500192 and 42500201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42500219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10044 + ... + 13633.

It is an arithmetic number, because the mean of its divisors is an integer number (6393060).

Almost surely, 2^42500215 is an apocalyptic number.

42500215 is a deficient number, since it is larger than the sum of its proper divisors (8644265).

42500215 is a wasteful number, since it uses less digits than its factorization.

42500215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24041.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 42500215 is about 6519.2188949291. The cubic root of 42500215 is about 348.9771908148.

Adding to 42500215 its reverse (51200524), we get a palindrome (93700739).

The spelling of 42500215 in words is "forty-two million, five hundred thousand, two hundred fifteen".