42501967 has 4 divisors (see below), whose sum is σ = 42530400. Its totient is φ = 42473536.

The previous prime is 42501923. The next prime is 42501973. The reversal of 42501967 is 76910524.

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 42501967 - 2⁷ = 42501839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42501997) 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, 11842 + ... + 15007.

It is an arithmetic number, because the mean of its divisors is an integer number (10632600).

Almost surely, 2^42501967 is an apocalyptic number.

42501967 is a deficient number, since it is larger than the sum of its proper divisors (28433).

42501967 is a wasteful number, since it uses less digits than its factorization.

42501967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28432.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 42501967 is about 6519.3532654704. The cubic root of 42501967 is about 348.9819860818.

The spelling of 42501967 in words is "forty-two million, five hundred one thousand, nine hundred sixty-seven".