5751553921 has 9 divisors (see below), whose sum is σ = 5797342083. Its totient is φ = 5706126360.

The previous prime is 5751553879. The next prime is 5751553931. The reversal of 5751553921 is 1293551575.

The square root of 5751553921 is 75839.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 63377521 + 5688176400 = 7961^2 + 75420^2 .

It is not a de Polignac number, because 5751553921 - 2²⁵ = 5717999489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5751553931) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13726650 + ... + 13727068.

Almost surely, 2^5751553921 is an apocalyptic number.

5751553921 is the 75839-th square number.

5751553921 is the 37920-th centered octagonal number.

It is an amenable number.

5751553921 is a deficient number, since it is larger than the sum of its proper divisors (45788162).

5751553921 is an frugal number, since it uses more digits than its factorization.

5751553921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 600 counting only the distinct ones).

The product of its digits is 236250, while the sum is 43.

The cubic root of 5751553921 is about 1791.6853057065.

The spelling of 5751553921 in words is "five billion, seven hundred fifty-one million, five hundred fifty-three thousand, nine hundred twenty-one".