42580651 has 4 divisors (see below), whose sum is σ = 42598872. Its totient is φ = 42562432.

The previous prime is 42580649. The next prime is 42580667. The reversal of 42580651 is 15608524.

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 42580651 - 2¹ = 42580649 is a prime.

It is a super-2 number, since 2×42580651² = 3626223679167602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42584651) 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, 4981 + ... + 10486.

It is an arithmetic number, because the mean of its divisors is an integer number (10649718).

Almost surely, 2^42580651 is an apocalyptic number.

42580651 is a deficient number, since it is larger than the sum of its proper divisors (18221).

42580651 is a wasteful number, since it uses less digits than its factorization.

42580651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18220.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 42580651 is about 6525.3851227341. The cubic root of 42580651 is about 349.1972104018.

The spelling of 42580651 in words is "forty-two million, five hundred eighty thousand, six hundred fifty-one".