42750533 has 4 divisors (see below), whose sum is σ = 48857760. Its totient is φ = 36643308.

The previous prime is 42750517. The next prime is 42750541. The reversal of 42750533 is 33505724.

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 42750533 - 2⁴ = 42750517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42750496 and 42750505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42750593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053603 + ... + 3053616.

It is an arithmetic number, because the mean of its divisors is an integer number (12214440).

Almost surely, 2^42750533 is an apocalyptic number.

It is an amenable number.

42750533 is a deficient number, since it is larger than the sum of its proper divisors (6107227).

42750533 is an equidigital number, since it uses as much as digits as its factorization.

42750533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6107226.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 42750533 is about 6538.3891747127. The cubic root of 42750533 is about 349.6609860189.

The spelling of 42750533 in words is "forty-two million, seven hundred fifty thousand, five hundred thirty-three".