42888953 has 4 divisors (see below), whose sum is σ = 42909348. Its totient is φ = 42868560.

The previous prime is 42888919. The next prime is 42888971. The reversal of 42888953 is 35988824.

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 16345849 + 26543104 = 4043^2 + 5152^2 .

It is a cyclic number.

It is not a de Polignac number, because 42888953 - 2⁶ = 42888889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42888898 and 42888907.

It is not an unprimeable number, because it can be changed into a prime (42888913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6626 + ... + 11387.

It is an arithmetic number, because the mean of its divisors is an integer number (10727337).

Almost surely, 2^42888953 is an apocalyptic number.

It is an amenable number.

42888953 is a deficient number, since it is larger than the sum of its proper divisors (20395).

42888953 is a wasteful number, since it uses less digits than its factorization.

42888953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20394.

The product of its digits is 552960, while the sum is 47.

The square root of 42888953 is about 6548.9657962155. The cubic root of 42888953 is about 350.0379632291.

The spelling of 42888953 in words is "forty-two million, eight hundred eighty-eight thousand, nine hundred fifty-three".