5155533521 has 8 divisors (see below), whose sum is σ = 5166720000. Its totient is φ = 5144360832.

The previous prime is 5155533517. The next prime is 5155533553. The reversal of 5155533521 is 1253355515.

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 5155533521 - 2² = 5155533517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5155532521) 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, 1075496 + ... + 1080278.

It is an arithmetic number, because the mean of its divisors is an integer number (645840000).

Almost surely, 2^5155533521 is an apocalyptic number.

It is an amenable number.

5155533521 is a deficient number, since it is larger than the sum of its proper divisors (11186479).

5155533521 is a wasteful number, since it uses less digits than its factorization.

5155533521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895.

The product of its digits is 56250, while the sum is 35.

The square root of 5155533521 is about 71802.0439890119. The cubic root of 5155533521 is about 1727.5257848366.

The spelling of 5155533521 in words is "five billion, one hundred fifty-five million, five hundred thirty-three thousand, five hundred twenty-one".