42550353 has 10 divisors (see below), whose sum is σ = 63562994. Its totient is φ = 28366848.

The previous prime is 42550351. The next prime is 42550357. The reversal of 42550353 is 35305524.

It can be written as a sum of positive squares in only one way, i.e., 21316689 + 21233664 = 4617^2 + 4608^2 .

It is not a de Polignac number, because 42550353 - 2¹ = 42550351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42550351) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 262576 + ... + 262737.

Almost surely, 2^42550353 is an apocalyptic number.

It is an amenable number.

42550353 is a deficient number, since it is larger than the sum of its proper divisors (21012641).

42550353 is an equidigital number, since it uses as much as digits as its factorization.

42550353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525325 (or 525316 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 42550353 is about 6523.0631608164. The cubic root of 42550353 is about 349.1143677085.

Adding to 42550353 its reverse (35305524), we get a palindrome (77855877).

The spelling of 42550353 in words is "forty-two million, five hundred fifty thousand, three hundred fifty-three".