42511033 has 6 divisors (see below), whose sum is σ = 45159086. Its totient is φ = 40010112.

The previous prime is 42511003. The next prime is 42511043. The reversal of 42511033 is 33011524.

It can be written as a sum of positive squares in 3 ways, for example, as 28761769 + 13749264 = 5363^2 + 3708^2 .

It is not a de Polignac number, because 42511033 - 2¹³ = 42502841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42511033.

It is not an unprimeable number, because it can be changed into a prime (42511003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73260 + ... + 73837.

Almost surely, 2^42511033 is an apocalyptic number.

It is an amenable number.

42511033 is a deficient number, since it is larger than the sum of its proper divisors (2648053).

42511033 is a wasteful number, since it uses less digits than its factorization.

42511033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147131 (or 147114 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 42511033 is about 6520.0485427641. The cubic root of 42511033 is about 349.0067978413.

Adding to 42511033 its reverse (33011524), we get a palindrome (75522557).

The spelling of 42511033 in words is "forty-two million, five hundred eleven thousand, thirty-three".