42412523 has 2 divisors, whose sum is σ = 42412524. Its totient is φ = 42412522.

The previous prime is 42412519. The next prime is 42412537. The reversal of 42412523 is 32521424.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42412523 - 2² = 42412519 is a prime.

It is not a weakly prime, because it can be changed into another prime (42412583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21206261 + 21206262.

It is an arithmetic number, because the mean of its divisors is an integer number (21206262).

Almost surely, 2^42412523 is an apocalyptic number.

42412523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42412523 is an equidigital number, since it uses as much as digits as its factorization.

42412523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 23.

The square root of 42412523 is about 6512.4897696657. The cubic root of 42412523 is about 348.7370070912.

Adding to 42412523 its reverse (32521424), we get a palindrome (74933947).

The spelling of 42412523 in words is "forty-two million, four hundred twelve thousand, five hundred twenty-three".