42551351 has 2 divisors, whose sum is σ = 42551352. Its totient is φ = 42551350.

The previous prime is 42551303. The next prime is 42551359. The reversal of 42551351 is 15315524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42551351 - 2⁶ = 42551287 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42551351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42551359) 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 as a sum of consecutive naturals, namely, 21275675 + 21275676.

It is an arithmetic number, because the mean of its divisors is an integer number (21275676).

Almost surely, 2^42551351 is an apocalyptic number.

42551351 is a deficient number, since it is larger than the sum of its proper divisors (1).

42551351 is an equidigital number, since it uses as much as digits as its factorization.

42551351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000, while the sum is 26.

The square root of 42551351 is about 6523.1396581707. The cubic root of 42551351 is about 349.1170971289.

Adding to 42551351 its reverse (15315524), we get a palindrome (57866875).

The spelling of 42551351 in words is "forty-two million, five hundred fifty-one thousand, three hundred fifty-one".