42250851 has 24 divisors (see below), whose sum is σ = 64600640. Its totient is φ = 26535600.

The previous prime is 42250849. The next prime is 42250913. The reversal of 42250851 is 15805224.

It is a happy number.

It is not a de Polignac number, because 42250851 - 2¹ = 42250849 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42250801) 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 23 ways as a sum of consecutive naturals, for example, 35496 + ... + 36666.

Almost surely, 2^42250851 is an apocalyptic number.

42250851 is a deficient number, since it is larger than the sum of its proper divisors (22349789).

42250851 is a wasteful number, since it uses less digits than its factorization.

42250851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 42250851 is about 6500.0654612088. The cubic root of 42250851 is about 348.2933268055.

The spelling of 42250851 in words is "forty-two million, two hundred fifty thousand, eight hundred fifty-one".