6425328531 has 4 divisors (see below), whose sum is σ = 8567104712. Its totient is φ = 4283552352.

The previous prime is 6425328473. The next prime is 6425328577. The reversal of 6425328531 is 1358235246.

It is a happy number.

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

It is not a de Polignac number, because 6425328531 - 2¹³ = 6425320339 is a prime.

It is a super-2 number, since 2×6425328531² = 82569693462565235922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6425328531.

It is not an unprimeable number, because it can be changed into a prime (6425328431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070888086 + ... + 1070888091.

It is an arithmetic number, because the mean of its divisors is an integer number (2141776178).

Almost surely, 2^6425328531 is an apocalyptic number.

6425328531 is a deficient number, since it is larger than the sum of its proper divisors (2141776181).

6425328531 is a wasteful number, since it uses less digits than its factorization.

6425328531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141776180.

The product of its digits is 172800, while the sum is 39.

The square root of 6425328531 is about 80158.1470032835. The cubic root of 6425328531 is about 1859.0815725319.

The spelling of 6425328531 in words is "six billion, four hundred twenty-five million, three hundred twenty-eight thousand, five hundred thirty-one".