5432320251 has 12 divisors (see below), whose sum is σ = 8187845328. Its totient is φ = 3464088144.

The previous prime is 5432320237. The next prime is 5432320259. The reversal of 5432320251 is 1520232345.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-5432320251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5432320259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13121340 + ... + 13121753.

It is an arithmetic number, because the mean of its divisors is an integer number (682320444).

Almost surely, 2^5432320251 is an apocalyptic number.

5432320251 is a deficient number, since it is larger than the sum of its proper divisors (2755525077).

5432320251 is a wasteful number, since it uses less digits than its factorization.

5432320251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26243122 (or 26243119 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 5432320251 is about 73704.2756629492. The cubic root of 5432320251 is about 1757.9038676286.

Adding to 5432320251 its reverse (1520232345), we get a palindrome (6952552596).

The spelling of 5432320251 in words is "five billion, four hundred thirty-two million, three hundred twenty thousand, two hundred fifty-one".