42528899 has 4 divisors (see below), whose sum is σ = 48604464. Its totient is φ = 36453336.

The previous prime is 42528847. The next prime is 42528907. The reversal of 42528899 is 99882524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42528899 - 2⁸ = 42528643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42528839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037772 + ... + 3037785.

It is an arithmetic number, because the mean of its divisors is an integer number (12151116).

Almost surely, 2^42528899 is an apocalyptic number.

42528899 is a deficient number, since it is larger than the sum of its proper divisors (6075565).

42528899 is an equidigital number, since it uses as much as digits as its factorization.

42528899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075564.

The product of its digits is 414720, while the sum is 47.

The square root of 42528899 is about 6521.4184806681. The cubic root of 42528899 is about 349.0556830499.

The spelling of 42528899 in words is "forty-two million, five hundred twenty-eight thousand, eight hundred ninety-nine".