42625069 has 8 divisors (see below), whose sum is σ = 45533880. Its totient is φ = 39760896.

The previous prime is 42625057. The next prime is 42625127. The reversal of 42625069 is 96052624.

It can be written as a sum of positive squares in 4 ways, for example, as 3724900 + 38900169 = 1930^2 + 6237^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42625069 - 2⁷ = 42624941 is a prime.

It is a super-2 number, since 2×42625069² = 3633793014509522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42625019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9174 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (5691735).

Almost surely, 2^42625069 is an apocalyptic number.

It is an amenable number.

42625069 is a deficient number, since it is larger than the sum of its proper divisors (2908811).

42625069 is a wasteful number, since it uses less digits than its factorization.

42625069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22319.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 42625069 is about 6528.7877128913. The cubic root of 42625069 is about 349.3185898793.

The spelling of 42625069 in words is "forty-two million, six hundred twenty-five thousand, sixty-nine".