42255592 has 8 divisors (see below), whose sum is σ = 79229250. Its totient is φ = 21127792.

The previous prime is 42255589. The next prime is 42255593. The reversal of 42255592 is 29555224.

It can be written as a sum of positive squares in only one way, i.e., 34269316 + 7986276 = 5854^2 + 2826^2 .

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 (42255593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2640967 + ... + 2640982.

Almost surely, 2^42255592 is an apocalyptic number.

It is an amenable number.

42255592 is a deficient number, since it is larger than the sum of its proper divisors (36973658).

42255592 is a wasteful number, since it uses less digits than its factorization.

42255592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281955 (or 5281951 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 42255592 is about 6500.4301396138. The cubic root of 42255592 is about 348.3063537376.

The spelling of 42255592 in words is "forty-two million, two hundred fifty-five thousand, five hundred ninety-two".