42548747 has 2 divisors, whose sum is σ = 42548748. Its totient is φ = 42548746.

The previous prime is 42548743. The next prime is 42548777. The reversal of 42548747 is 74784524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42548747 - 2² = 42548743 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42548743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21274373 + 21274374.

It is an arithmetic number, because the mean of its divisors is an integer number (21274374).

Almost surely, 2^42548747 is an apocalyptic number.

42548747 is a deficient number, since it is larger than the sum of its proper divisors (1).

42548747 is an equidigital number, since it uses as much as digits as its factorization.

42548747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 250880, while the sum is 41.

The square root of 42548747 is about 6522.9400579800. The cubic root of 42548747 is about 349.1099753851.

The spelling of 42548747 in words is "forty-two million, five hundred forty-eight thousand, seven hundred forty-seven".