42880655 has 4 divisors (see below), whose sum is σ = 51456792. Its totient is φ = 34304520.

The previous prime is 42880631. The next prime is 42880667. The reversal of 42880655 is 55608824.

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

It is not a de Polignac number, because 42880655 - 2¹⁶ = 42815119 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 4288061 + ... + 4288070.

It is an arithmetic number, because the mean of its divisors is an integer number (12864198).

Almost surely, 2^42880655 is an apocalyptic number.

42880655 is a deficient number, since it is larger than the sum of its proper divisors (8576137).

42880655 is an equidigital number, since it uses as much as digits as its factorization.

42880655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8576136.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 42880655 is about 6548.3322304233. The cubic root of 42880655 is about 350.0153870786.

The spelling of 42880655 in words is "forty-two million, eight hundred eighty thousand, six hundred fifty-five".