5481625445 has 4 divisors (see below), whose sum is σ = 6577950540. Its totient is φ = 4385300352.

The previous prime is 5481625427. The next prime is 5481625451. The reversal of 5481625445 is 5445261845.

It is a Cunningham number, because it is equal to 74038²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1973314084 + 3508311361 = 44422^2 + 59231^2 .

It is a cyclic number.

It is not a de Polignac number, because 5481625445 - 2²⁰ = 5480576869 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5481625396 and 5481625405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548162540 + ... + 548162549.

It is an arithmetic number, because the mean of its divisors is an integer number (1644487635).

Almost surely, 2^5481625445 is an apocalyptic number.

It is an amenable number.

5481625445 is a deficient number, since it is larger than the sum of its proper divisors (1096325095).

5481625445 is a wasteful number, since it uses less digits than its factorization.

5481625445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096325094.

The product of its digits is 768000, while the sum is 44.

The square root of 5481625445 is about 74038.0000067533. Note that the first 5 decimals coincide. The cubic root of 5481625445 is about 1763.2062600179.

The spelling of 5481625445 in words is "five billion, four hundred eighty-one million, six hundred twenty-five thousand, four hundred forty-five".