42571250 has 20 divisors (see below), whose sum is σ = 79797894. Its totient is φ = 17028000.

The previous prime is 42571241. The next prime is 42571259. The reversal of 42571250 is 5217524.

42571250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42571241) and next prime (42571259).

It can be written as a sum of positive squares in 5 ways, for example, as 3845521 + 38725729 = 1961^2 + 6223^2 .

It is a super-2 number, since 2×42571250² = 3624622653125000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42571259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15779 + ... + 18278.

Almost surely, 2^42571250 is an apocalyptic number.

42571250 is a deficient number, since it is larger than the sum of its proper divisors (37226644).

42571250 is an equidigital number, since it uses as much as digits as its factorization.

42571250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34079 (or 34064 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 42571250 is about 6524.6647423450. The cubic root of 42571250 is about 349.1715098037.

Adding to 42571250 its reverse (5217524), we get a palindrome (47788774).

The spelling of 42571250 in words is "forty-two million, five hundred seventy-one thousand, two hundred fifty".