42626251 has 8 divisors (see below), whose sum is σ = 43506144. Its totient is φ = 41752320.

The previous prime is 42626239. The next prime is 42626263. The reversal of 42626251 is 15262624.

42626251 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 (42626239) and next prime (42626263).

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 42626251 - 2¹⁹ = 42101963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42606251) 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 7 ways as a sum of consecutive naturals, for example, 14715 + ... + 17371.

It is an arithmetic number, because the mean of its divisors is an integer number (5438268).

Almost surely, 2^42626251 is an apocalyptic number.

42626251 is a deficient number, since it is larger than the sum of its proper divisors (879893).

42626251 is a wasteful number, since it uses less digits than its factorization.

42626251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981.

The product of its digits is 5760, while the sum is 28.

The square root of 42626251 is about 6528.8782344289. The cubic root of 42626251 is about 349.3218187363.

Adding to 42626251 its reverse (15262624), we get a palindrome (57888875).

The spelling of 42626251 in words is "forty-two million, six hundred twenty-six thousand, two hundred fifty-one".