42953571 has 20 divisors (see below), whose sum is σ = 64614000. Its totient is φ = 28435536.

The previous prime is 42953567. The next prime is 42953587. The reversal of 42953571 is 17535924.

It is not a de Polignac number, because 42953571 - 2² = 42953567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42953531) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10290 + ... + 13848.

It is an arithmetic number, because the mean of its divisors is an integer number (3230700).

Almost surely, 2^42953571 is an apocalyptic number.

42953571 is a deficient number, since it is larger than the sum of its proper divisors (21660429).

42953571 is a wasteful number, since it uses less digits than its factorization.

42953571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720 (or 3711 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 42953571 is about 6553.8973901031. The cubic root of 42953571 is about 350.2136681727.

The spelling of 42953571 in words is "forty-two million, nine hundred fifty-three thousand, five hundred seventy-one".