42211545 has 8 divisors (see below), whose sum is σ = 67538496. Its totient is φ = 22512816.

The previous prime is 42211537. The next prime is 42211571. The reversal of 42211545 is 54511224.

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

It is not a de Polignac number, because 42211545 - 2³ = 42211537 is a prime.

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, 1407037 + ... + 1407066.

It is an arithmetic number, because the mean of its divisors is an integer number (8442312).

Almost surely, 2^42211545 is an apocalyptic number.

It is an amenable number.

42211545 is a deficient number, since it is larger than the sum of its proper divisors (25326951).

42211545 is a wasteful number, since it uses less digits than its factorization.

42211545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814111.

The product of its digits is 1600, while the sum is 24.

The square root of 42211545 is about 6497.0412496767. The cubic root of 42211545 is about 348.1852874434.

Adding to 42211545 its reverse (54511224), we get a palindrome (96722769).

The spelling of 42211545 in words is "forty-two million, two hundred eleven thousand, five hundred forty-five".