5525378451 has 6 divisors (see below), whose sum is σ = 7981102220. Its totient is φ = 3683585628.

The previous prime is 5525378449. The next prime is 5525378549. The reversal of 5525378451 is 1548735255.

5525378451 is a `hidden beast` number, since 5 + 525 + 3 + 78 + 4 + 51 = 666.

It is not a de Polignac number, because 5525378451 - 2¹ = 5525378449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5525378397 and 5525378406.

It is not an unprimeable number, because it can be changed into a prime (5525378351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306965461 + ... + 306965478.

Almost surely, 2^5525378451 is an apocalyptic number.

5525378451 is a deficient number, since it is larger than the sum of its proper divisors (2455723769).

5525378451 is a wasteful number, since it uses less digits than its factorization.

5525378451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613930945 (or 613930942 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 5525378451 is about 74332.8894299152. The cubic root of 5525378451 is about 1767.8849955351.

The spelling of 5525378451 in words is "five billion, five hundred twenty-five million, three hundred seventy-eight thousand, four hundred fifty-one".