5481625428 has 60 divisors (see below), whose sum is σ = 14361796372. Its totient is φ = 1823160960.

The previous prime is 5481625427. The next prime is 5481625451. The reversal of 5481625428 is 8245261845.

5481625428 is a `hidden beast` number, since 5 + 48 + 1 + 62 + 542 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2538345924 + 2943279504 = 50382^2 + 54252^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5481625427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 129558 + ... + 166578.

Almost surely, 2^5481625428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5481625428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7180898186).

5481625428 is an abundant number, since it is smaller than the sum of its proper divisors (8880170944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5481625428 is a wasteful number, since it uses less digits than its factorization.

5481625428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37494 (or 37483 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 5481625428 is about 74037.9998919474. Note that the first 3 decimals coincide. The cubic root of 5481625428 is about 1763.2062581951.

The spelling of 5481625428 in words is "five billion, four hundred eighty-one million, six hundred twenty-five thousand, four hundred twenty-eight".