56836121 has 8 divisors (see below), whose sum is σ = 58181760. Its totient is φ = 55505952.

The previous prime is 56836111. The next prime is 56836123. The reversal of 56836121 is 12163865.

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 a de Polignac number, because none of the positive numbers 2^k-56836121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56836123) 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, 3740 + ... + 11298.

It is an arithmetic number, because the mean of its divisors is an integer number (7272720).

Almost surely, 2^56836121 is an apocalyptic number.

It is an amenable number.

56836121 is a deficient number, since it is larger than the sum of its proper divisors (1345639).

56836121 is a wasteful number, since it uses less digits than its factorization.

56836121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735.

The product of its digits is 8640, while the sum is 32.

The square root of 56836121 is about 7538.9734712360. The cubic root of 56836121 is about 384.4809354033.

Adding to 56836121 its reverse (12163865), we get a palindrome (68999986).

The spelling of 56836121 in words is "fifty-six million, eight hundred thirty-six thousand, one hundred twenty-one".