56545244251 has 8 divisors (see below), whose sum is σ = 57359942640. Its totient is φ = 55731629952.

The previous prime is 56545244221. The next prime is 56545244267. The reversal of 56545244251 is 15244254565.

It is a happy number.

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 56545244251 - 2²³ = 56536855643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56545244198 and 56545244207.

It is not an unprimeable number, because it can be changed into a prime (56545244221) 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, 165661 + ... + 374878.

It is an arithmetic number, because the mean of its divisors is an integer number (7169992830).

Almost surely, 2^56545244251 is an apocalyptic number.

56545244251 is a deficient number, since it is larger than the sum of its proper divisors (814698389).

56545244251 is a wasteful number, since it uses less digits than its factorization.

56545244251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542045.

The product of its digits is 960000, while the sum is 43.

The spelling of 56545244251 in words is "fifty-six billion, five hundred forty-five million, two hundred forty-four thousand, two hundred fifty-one".