56002121 has 8 divisors (see below), whose sum is σ = 64069824. Its totient is φ = 47951280.

The previous prime is 56002109. The next prime is 56002123. The reversal of 56002121 is 12120065.

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-56002121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56002121.

It is not an unprimeable number, because it can be changed into a prime (56002123) 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, 3971 + ... + 11303.

It is an arithmetic number, because the mean of its divisors is an integer number (8008728).

Almost surely, 2^56002121 is an apocalyptic number.

It is an amenable number.

56002121 is a deficient number, since it is larger than the sum of its proper divisors (8067703).

56002121 is a wasteful number, since it uses less digits than its factorization.

56002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 56002121 is about 7483.4564874796. The cubic root of 56002121 is about 382.5910666447.

Adding to 56002121 its reverse (12120065), we get a palindrome (68122186).

The spelling of 56002121 in words is "fifty-six million, two thousand, one hundred twenty-one".