42205351 has 4 divisors (see below), whose sum is σ = 42897304. Its totient is φ = 41513400.

The previous prime is 42205337. The next prime is 42205369. The reversal of 42205351 is 15350224.

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 42205351 - 2¹¹ = 42203303 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 (42205301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345885 + ... + 346006.

It is an arithmetic number, because the mean of its divisors is an integer number (10724326).

Almost surely, 2^42205351 is an apocalyptic number.

42205351 is a deficient number, since it is larger than the sum of its proper divisors (691953).

42205351 is an equidigital number, since it uses as much as digits as its factorization.

42205351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691952.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 42205351 is about 6496.5645536699. The cubic root of 42205351 is about 348.1682560430.

Adding to 42205351 its reverse (15350224), we get a palindrome (57555575).

The spelling of 42205351 in words is "forty-two million, two hundred five thousand, three hundred fifty-one".