56667001 has 8 divisors (see below), whose sum is σ = 60079104. Its totient is φ = 53263680.

The previous prime is 56666993. The next prime is 56667011. The reversal of 56667001 is 10076665.

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 56667001 - 2³ = 56666993 is a prime.

It is a super-2 number, since 2×56667001² = 6422298004668002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56667011) 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, 15016 + ... + 18406.

It is an arithmetic number, because the mean of its divisors is an integer number (7509888).

Almost surely, 2^56667001 is an apocalyptic number.

It is an amenable number.

56667001 is a deficient number, since it is larger than the sum of its proper divisors (3412103).

56667001 is a wasteful number, since it uses less digits than its factorization.

56667001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 56667001 is about 7527.7487338513. The cubic root of 56667001 is about 384.0992062292.

The spelling of 56667001 in words is "fifty-six million, six hundred sixty-seven thousand, one".