42253425 has 18 divisors (see below), whose sum is σ = 75680982. Its totient is φ = 22535040.

The previous prime is 42253417. The next prime is 42253441. The reversal of 42253425 is 52435224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1382976 + 40870449 = 1176^2 + 6393^2 .

It is not a de Polignac number, because 42253425 - 2³ = 42253417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 93672 + ... + 94121.

It is an arithmetic number, because the mean of its divisors is an integer number (4204499).

Almost surely, 2^42253425 is an apocalyptic number.

42253425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42253425 is a deficient number, since it is larger than the sum of its proper divisors (33427557).

42253425 is a wasteful number, since it uses less digits than its factorization.

42253425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187809 (or 187801 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 42253425 is about 6500.2634561993. The cubic root of 42253425 is about 348.3003995531.

Adding to 42253425 its reverse (52435224), we get a palindrome (94688649).

The spelling of 42253425 in words is "forty-two million, two hundred fifty-three thousand, four hundred twenty-five".