42530452 has 6 divisors (see below), whose sum is σ = 74428298. Its totient is φ = 21265224.

The previous prime is 42530437. The next prime is 42530459. The reversal of 42530452 is 25403524.

It can be written as a sum of positive squares in only one way, i.e., 38514436 + 4016016 = 6206^2 + 2004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42530459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5316303 + ... + 5316310.

Almost surely, 2^42530452 is an apocalyptic number.

It is an amenable number.

42530452 is a deficient number, since it is larger than the sum of its proper divisors (31897846).

42530452 is a wasteful number, since it uses less digits than its factorization.

42530452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10632617 (or 10632615 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42530452 is about 6521.5375487687. The cubic root of 42530452 is about 349.0599317443.

Adding to 42530452 its reverse (25403524), we get a palindrome (67933976).

The spelling of 42530452 in words is "forty-two million, five hundred thirty thousand, four hundred fifty-two".