42253256 has 8 divisors (see below), whose sum is σ = 79224870. Its totient is φ = 21126624.

The previous prime is 42253241. The next prime is 42253259. The reversal of 42253256 is 65235224.

It can be written as a sum of positive squares in only one way, i.e., 30625156 + 11628100 = 5534^2 + 3410^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42253259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2640821 + ... + 2640836.

Almost surely, 2^42253256 is an apocalyptic number.

It is an amenable number.

42253256 is a deficient number, since it is larger than the sum of its proper divisors (36971614).

42253256 is a wasteful number, since it uses less digits than its factorization.

42253256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281663 (or 5281659 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 42253256 is about 6500.2504567132. The cubic root of 42253256 is about 348.2999351896.

The spelling of 42253256 in words is "forty-two million, two hundred fifty-three thousand, two hundred fifty-six".