2152544551 has 4 divisors (see below), whose sum is σ = 2221981504. Its totient is φ = 2083107600.

The previous prime is 2152544549. The next prime is 2152544579. The reversal of 2152544551 is 1554452512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2152544551 - 2¹ = 2152544549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152544591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34718430 + ... + 34718491.

It is an arithmetic number, because the mean of its divisors is an integer number (555495376).

Almost surely, 2^2152544551 is an apocalyptic number.

2152544551 is a deficient number, since it is larger than the sum of its proper divisors (69436953).

2152544551 is an equidigital number, since it uses as much as digits as its factorization.

2152544551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69436952.

The product of its digits is 40000, while the sum is 34.

The square root of 2152544551 is about 46395.5229628894. The cubic root of 2152544551 is about 1291.1718516448.

The spelling of 2152544551 in words is "two billion, one hundred fifty-two million, five hundred forty-four thousand, five hundred fifty-one".