42533645 has 16 divisors (see below), whose sum is σ = 63635328. Its totient is φ = 26514240.

The previous prime is 42533641. The next prime is 42533657. The reversal of 42533645 is 54633524.

It is not a de Polignac number, because 42533645 - 2² = 42533641 is a prime.

It is a super-3 number, since 3×42533645³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42533641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54854 + ... + 55623.

It is an arithmetic number, because the mean of its divisors is an integer number (3977208).

Almost surely, 2^42533645 is an apocalyptic number.

It is an amenable number.

42533645 is a deficient number, since it is larger than the sum of its proper divisors (21101683).

42533645 is a wasteful number, since it uses less digits than its factorization.

42533645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110500.

The product of its digits is 43200, while the sum is 32.

The square root of 42533645 is about 6521.7823484075. The cubic root of 42533645 is about 349.0686668225.

The spelling of 42533645 in words is "forty-two million, five hundred thirty-three thousand, six hundred forty-five".