42257351 has 4 divisors (see below), whose sum is σ = 42434400. Its totient is φ = 42080304.

The previous prime is 42257333. The next prime is 42257381. The reversal of 42257351 is 15375224.

It is a happy number.

42257351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42257351 - 2¹⁰ = 42256327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42257381) 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 3 ways as a sum of consecutive naturals, for example, 88166 + ... + 88643.

It is an arithmetic number, because the mean of its divisors is an integer number (10608600).

Almost surely, 2^42257351 is an apocalyptic number.

42257351 is a deficient number, since it is larger than the sum of its proper divisors (177049).

42257351 is a wasteful number, since it uses less digits than its factorization.

42257351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177048.

The product of its digits is 8400, while the sum is 29.

The square root of 42257351 is about 6500.5654369447. The cubic root of 42257351 is about 348.3111867262.

The spelling of 42257351 in words is "forty-two million, two hundred fifty-seven thousand, three hundred fifty-one".