42507583 has 2 divisors, whose sum is σ = 42507584. Its totient is φ = 42507582.

The previous prime is 42507571. The next prime is 42507587. The reversal of 42507583 is 38570524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42507583 - 2⁵ = 42507551 is a prime.

It is a super-2 number, since 2×42507583² = 3613789225003778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42507587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21253791 + 21253792.

It is an arithmetic number, because the mean of its divisors is an integer number (21253792).

Almost surely, 2^42507583 is an apocalyptic number.

42507583 is a deficient number, since it is larger than the sum of its proper divisors (1).

42507583 is an equidigital number, since it uses as much as digits as its factorization.

42507583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 42507583 is about 6519.7839688137. The cubic root of 42507583 is about 348.9973563235.

The spelling of 42507583 in words is "forty-two million, five hundred seven thousand, five hundred eighty-three".