56145058667 has 4 divisors (see below), whose sum is σ = 56200157880. Its totient is φ = 56089959456.

The previous prime is 56145058657. The next prime is 56145058681. The reversal of 56145058667 is 76685054165.

It is a happy number.

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 56145058667 - 2¹² = 56145054571 is a prime.

It is a super-2 number, since 2×56145058667² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56145058657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27548078 + ... + 27550115.

It is an arithmetic number, because the mean of its divisors is an integer number (14050039470).

Almost surely, 2^56145058667 is an apocalyptic number.

56145058667 is a deficient number, since it is larger than the sum of its proper divisors (55099213).

56145058667 is a wasteful number, since it uses less digits than its factorization.

56145058667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55099212.

The product of its (nonzero) digits is 6048000, while the sum is 53.

The spelling of 56145058667 in words is "fifty-six billion, one hundred forty-five million, fifty-eight thousand, six hundred sixty-seven".