42507469 has 2 divisors, whose sum is σ = 42507470. Its totient is φ = 42507468.

The previous prime is 42507461. The next prime is 42507511. The reversal of 42507469 is 96470524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26904969 + 15602500 = 5187^2 + 3950^2 .

It is a cyclic number.

It is not a de Polignac number, because 42507469 - 2³ = 42507461 is a prime.

It is a super-2 number, since 2×42507469² = 3613769841571922, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42507461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21253734 + 21253735.

It is an arithmetic number, because the mean of its divisors is an integer number (21253735).

Almost surely, 2^42507469 is an apocalyptic number.

It is an amenable number.

42507469 is a deficient number, since it is larger than the sum of its proper divisors (1).

42507469 is an equidigital number, since it uses as much as digits as its factorization.

42507469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 42507469 is about 6519.7752261869. The cubic root of 42507469 is about 348.9970443342.

The spelling of 42507469 in words is "forty-two million, five hundred seven thousand, four hundred sixty-nine".