42551045 has 8 divisors (see below), whose sum is σ = 51400320. Its totient is φ = 33814800.

The previous prime is 42551039. The next prime is 42551053. The reversal of 42551045 is 54015524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42551045 - 2¹² = 42546949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27425 + ... + 28934.

It is an arithmetic number, because the mean of its divisors is an integer number (6425040).

Almost surely, 2^42551045 is an apocalyptic number.

It is an amenable number.

42551045 is a deficient number, since it is larger than the sum of its proper divisors (8849275).

42551045 is a wasteful number, since it uses less digits than its factorization.

42551045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56515.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 42551045 is about 6523.1162031655. The cubic root of 42551045 is about 349.1162602571.

Adding to 42551045 its reverse (54015524), we get a palindrome (96566569).

The spelling of 42551045 in words is "forty-two million, five hundred fifty-one thousand, forty-five".