42253705 has 16 divisors (see below), whose sum is σ = 55770624. Its totient is φ = 30536640.

The previous prime is 42253697. The next prime is 42253711. The reversal of 42253705 is 50735224.

It is not a de Polignac number, because 42253705 - 2³ = 42253697 is a prime.

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, 3861 + ... + 9970.

It is an arithmetic number, because the mean of its divisors is an integer number (3485664).

Almost surely, 2^42253705 is an apocalyptic number.

It is an amenable number.

42253705 is a deficient number, since it is larger than the sum of its proper divisors (13516919).

42253705 is a wasteful number, since it uses less digits than its factorization.

42253705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13896.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 42253705 is about 6500.2849937522. The cubic root of 42253705 is about 348.3011689101.

Adding to 42253705 its reverse (50735224), we get a palindrome (92988929).

The spelling of 42253705 in words is "forty-two million, two hundred fifty-three thousand, seven hundred five".