42425253 has 18 divisors (see below), whose sum is σ = 66359826. Its totient is φ = 26106912.

The previous prime is 42425249. The next prime is 42425287. The reversal of 42425253 is 35252424.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5919489 + 36505764 = 2433^2 + 6042^2 .

It is not a de Polignac number, because 42425253 - 2² = 42425249 is a prime.

It is a super-2 number, since 2×42425253² = 3599804184228018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42425203) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12426 + ... + 15467.

It is an arithmetic number, because the mean of its divisors is an integer number (3686657).

Almost surely, 2^42425253 is an apocalyptic number.

It is an amenable number.

42425253 is a deficient number, since it is larger than the sum of its proper divisors (23934573).

42425253 is a wasteful number, since it uses less digits than its factorization.

42425253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27925 (or 27909 counting only the distinct ones).

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

The square root of 42425253 is about 6513.4670491221. The cubic root of 42425253 is about 348.7718944130.

Adding to 42425253 its reverse (35252424), we get a palindrome (77677677).

The spelling of 42425253 in words is "forty-two million, four hundred twenty-five thousand, two hundred fifty-three".