42551853 has 4 divisors (see below), whose sum is σ = 56735808. Its totient is φ = 28367900.

The previous prime is 42551851. The next prime is 42551857. The reversal of 42551853 is 35815524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42551853 - 2¹ = 42551851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42551851) 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 3 ways as a sum of consecutive naturals, for example, 7091973 + ... + 7091978.

It is an arithmetic number, because the mean of its divisors is an integer number (14183952).

Almost surely, 2^42551853 is an apocalyptic number.

It is an amenable number.

42551853 is a deficient number, since it is larger than the sum of its proper divisors (14183955).

42551853 is a wasteful number, since it uses less digits than its factorization.

42551853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14183954.

The product of its digits is 24000, while the sum is 33.

The square root of 42551853 is about 6523.1781364608. The cubic root of 42551853 is about 349.1184700277.

The spelling of 42551853 in words is "forty-two million, five hundred fifty-one thousand, eight hundred fifty-three".