42625817 has 8 divisors (see below), whose sum is σ = 48605256. Its totient is φ = 37032192.

The previous prime is 42625811. The next prime is 42625823. The reversal of 42625817 is 71852624.

It is an interprime number because it is at equal distance from previous prime (42625811) and next prime (42625823).

It can be written as a sum of positive squares in 4 ways, for example, as 10601536 + 32024281 = 3256^2 + 5659^2 .

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 42625817 - 2⁶ = 42625753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42625811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96218 + ... + 96659.

It is an arithmetic number, because the mean of its divisors is an integer number (6075657).

Almost surely, 2^42625817 is an apocalyptic number.

It is an amenable number.

42625817 is a deficient number, since it is larger than the sum of its proper divisors (5979439).

42625817 is a wasteful number, since it uses less digits than its factorization.

42625817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192907.

The product of its digits is 26880, while the sum is 35.

The square root of 42625817 is about 6528.8449973943. The cubic root of 42625817 is about 349.3206331900.

The spelling of 42625817 in words is "forty-two million, six hundred twenty-five thousand, eight hundred seventeen".