5756521121 has 8 divisors (see below), whose sum is σ = 6468866880. Its totient is φ = 5082680592.

The previous prime is 5756521117. The next prime is 5756521129. The reversal of 5756521121 is 1211256575.

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 5756521121 - 2² = 5756521117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5756521129) 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, 9625991 + ... + 9626588.

It is an arithmetic number, because the mean of its divisors is an integer number (808608360).

Almost surely, 2^5756521121 is an apocalyptic number.

It is an amenable number.

5756521121 is a deficient number, since it is larger than the sum of its proper divisors (712345759).

5756521121 is a wasteful number, since it uses less digits than its factorization.

5756521121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19252615.

The product of its digits is 21000, while the sum is 35.

The square root of 5756521121 is about 75871.7412545672. The cubic root of 5756521121 is about 1792.2009401828.

Adding to 5756521121 its reverse (1211256575), we get a palindrome (6967777696).

The spelling of 5756521121 in words is "five billion, seven hundred fifty-six million, five hundred twenty-one thousand, one hundred twenty-one".