42554515 has 24 divisors (see below), whose sum is σ = 53840304. Its totient is φ = 32275200.

The previous prime is 42554497. The next prime is 42554527. The reversal of 42554515 is 51545524.

It is not a de Polignac number, because 42554515 - 2⁵ = 42554483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 512664 + ... + 512746.

It is an arithmetic number, because the mean of its divisors is an integer number (2243346).

Almost surely, 2^42554515 is an apocalyptic number.

42554515 is a deficient number, since it is larger than the sum of its proper divisors (11285789).

42554515 is an equidigital number, since it uses as much as digits as its factorization.

42554515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 190 counting only the distinct ones).

The product of its digits is 20000, while the sum is 31.

The square root of 42554515 is about 6523.3821749151. The cubic root of 42554515 is about 349.1257500396.

The spelling of 42554515 in words is "forty-two million, five hundred fifty-four thousand, five hundred fifteen".