42551151 has 4 divisors (see below), whose sum is σ = 56734872. Its totient is φ = 28367432.

The previous prime is 42551143. The next prime is 42551161. The reversal of 42551151 is 15115524.

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 42551151 - 2³ = 42551143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42551111) 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, 7091856 + ... + 7091861.

It is an arithmetic number, because the mean of its divisors is an integer number (14183718).

Almost surely, 2^42551151 is an apocalyptic number.

42551151 is a deficient number, since it is larger than the sum of its proper divisors (14183721).

42551151 is a wasteful number, since it uses less digits than its factorization.

42551151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14183720.

The product of its digits is 1000, while the sum is 24.

The square root of 42551151 is about 6523.1243281115. The cubic root of 42551151 is about 349.1165501543.

Adding to 42551151 its reverse (15115524), we get a palindrome (57666675).

The spelling of 42551151 in words is "forty-two million, five hundred fifty-one thousand, one hundred fifty-one".