42495623 has 2 divisors, whose sum is σ = 42495624. Its totient is φ = 42495622.

The previous prime is 42495617. The next prime is 42495641. The reversal of 42495623 is 32659424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42495623 - 2⁸ = 42495367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42495683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21247811 + 21247812.

It is an arithmetic number, because the mean of its divisors is an integer number (21247812).

Almost surely, 2^42495623 is an apocalyptic number.

42495623 is a deficient number, since it is larger than the sum of its proper divisors (1).

42495623 is an equidigital number, since it uses as much as digits as its factorization.

42495623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 42495623 is about 6518.8666959833. The cubic root of 42495623 is about 348.9646217727.

The spelling of 42495623 in words is "forty-two million, four hundred ninety-five thousand, six hundred twenty-three".