42495641 has 2 divisors, whose sum is σ = 42495642. Its totient is φ = 42495640.

The previous prime is 42495623. The next prime is 42495659. The reversal of 42495641 is 14659424.

It is a balanced prime because it is at equal distance from previous prime (42495623) and next prime (42495659).

It can be written as a sum of positive squares in only one way, i.e., 34633225 + 7862416 = 5885^2 + 2804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42495641 is a prime.

It is a Chen prime.

It is equal to p_2575943 and since 42495641 and 2575943 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42495941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21247820 + 21247821.

It is an arithmetic number, because the mean of its divisors is an integer number (21247821).

Almost surely, 2^42495641 is an apocalyptic number.

It is an amenable number.

42495641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42495641 is an equidigital number, since it uses as much as digits as its factorization.

42495641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 42495641 is about 6518.8680765912. The cubic root of 42495641 is about 348.9646710433.

The spelling of 42495641 in words is "forty-two million, four hundred ninety-five thousand, six hundred forty-one".