42590623 has 2 divisors, whose sum is σ = 42590624. Its totient is φ = 42590622.

The previous prime is 42590617. The next prime is 42590629. The reversal of 42590623 is 32609524.

It is a balanced prime because it is at equal distance from previous prime (42590617) and next prime (42590629).

It is a cyclic number.

It is not a de Polignac number, because 42590623 - 2⁵ = 42590591 is a prime.

It is a super-2 number, since 2×42590623² = 3627922335056258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42590629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21295311 + 21295312.

It is an arithmetic number, because the mean of its divisors is an integer number (21295312).

Almost surely, 2^42590623 is an apocalyptic number.

42590623 is a deficient number, since it is larger than the sum of its proper divisors (1).

42590623 is an equidigital number, since it uses as much as digits as its factorization.

42590623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 42590623 is about 6526.1491708357. The cubic root of 42590623 is about 349.2244678745.

The spelling of 42590623 in words is "forty-two million, five hundred ninety thousand, six hundred twenty-three".