56664141 has 4 divisors (see below), whose sum is σ = 75552192. Its totient is φ = 37776092.

The previous prime is 56664121. The next prime is 56664143. The reversal of 56664141 is 14146665.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56664141 - 2¹⁷ = 56533069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56664143) 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, 9444021 + ... + 9444026.

It is an arithmetic number, because the mean of its divisors is an integer number (18888048).

Almost surely, 2^56664141 is an apocalyptic number.

It is an amenable number.

56664141 is a deficient number, since it is larger than the sum of its proper divisors (18888051).

56664141 is a wasteful number, since it uses less digits than its factorization.

56664141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18888050.

The product of its digits is 17280, while the sum is 33.

The square root of 56664141 is about 7527.5587676218. The cubic root of 56664141 is about 384.0927442543.

The spelling of 56664141 in words is "fifty-six million, six hundred sixty-four thousand, one hundred forty-one".