42524405 has 48 divisors (see below), whose sum is σ = 66977280. Its totient is φ = 25603200.

The previous prime is 42524399. The next prime is 42524407. The reversal of 42524405 is 50442524.

It is not a de Polignac number, because 42524405 - 2¹⁰ = 42523381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42524407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83291 + ... + 83799.

It is an arithmetic number, because the mean of its divisors is an integer number (1395360).

Almost surely, 2^42524405 is an apocalyptic number.

It is an amenable number.

42524405 is a deficient number, since it is larger than the sum of its proper divisors (24452875).

42524405 is a wasteful number, since it uses less digits than its factorization.

42524405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 42524405 is about 6521.0739146248. The cubic root of 42524405 is about 349.0433877909.

Adding to 42524405 its reverse (50442524), we get a palindrome (92966929).

The spelling of 42524405 in words is "forty-two million, five hundred twenty-four thousand, four hundred five".