42633545 has 4 divisors (see below), whose sum is σ = 51160260. Its totient is φ = 34106832.

The previous prime is 42633523. The next prime is 42633553. The reversal of 42633545 is 54533624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5812921 + 36820624 = 2411^2 + 6068^2 .

It is a cyclic number.

It is not a de Polignac number, because 42633545 - 2¹⁰ = 42632521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4263350 + ... + 4263359.

It is an arithmetic number, because the mean of its divisors is an integer number (12790065).

Almost surely, 2^42633545 is an apocalyptic number.

It is an amenable number.

42633545 is a deficient number, since it is larger than the sum of its proper divisors (8526715).

42633545 is an equidigital number, since it uses as much as digits as its factorization.

42633545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8526714.

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

The square root of 42633545 is about 6529.4368057283. The cubic root of 42633545 is about 349.3417423590.

The spelling of 42633545 in words is "forty-two million, six hundred thirty-three thousand, five hundred forty-five".