42550151 has 16 divisors (see below), whose sum is σ = 49766400. Its totient is φ = 35626848.

The previous prime is 42550147. The next prime is 42550153. The reversal of 42550151 is 15105524.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42550151 - 2² = 42550147 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 (42550153) 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 15 ways as a sum of consecutive naturals, for example, 110906 + ... + 111288.

It is an arithmetic number, because the mean of its divisors is an integer number (3110400).

Almost surely, 2^42550151 is an apocalyptic number.

42550151 is a deficient number, since it is larger than the sum of its proper divisors (7216249).

42550151 is a wasteful number, since it uses less digits than its factorization.

42550151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 42550151 is about 6523.0476772748. The cubic root of 42550151 is about 349.1138152554.

Adding to 42550151 its reverse (15105524), we get a palindrome (57655675).

The spelling of 42550151 in words is "forty-two million, five hundred fifty thousand, one hundred fifty-one".