42057655 has 16 divisors (see below), whose sum is σ = 51955200. Its totient is φ = 32665248.

The previous prime is 42057629. The next prime is 42057671. The reversal of 42057655 is 55675024.

It is a cyclic number.

It is not a de Polignac number, because 42057655 - 2⁵ = 42057623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42057655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42294 + ... + 43276.

It is an arithmetic number, because the mean of its divisors is an integer number (3247200).

Almost surely, 2^42057655 is an apocalyptic number.

42057655 is a deficient number, since it is larger than the sum of its proper divisors (9897545).

42057655 is a wasteful number, since it uses less digits than its factorization.

42057655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 42057655 is about 6485.1873527293. The cubic root of 42057655 is about 347.7616475700.

The spelling of 42057655 in words is "forty-two million, fifty-seven thousand, six hundred fifty-five".