5557878225 has 72 divisors (see below), whose sum is σ = 10368925632. Its totient is φ = 2843164800.

The previous prime is 5557878211. The next prime is 5557878239. The reversal of 5557878225 is 5228787555.

5557878225 is a `hidden beast` number, since 5 + 557 + 8 + 7 + 82 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (5557878211) and next prime (5557878239).

It is not a de Polignac number, because 5557878225 - 2²⁷ = 5423660497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 586374 + ... + 595776.

It is an arithmetic number, because the mean of its divisors is an integer number (144012856).

Almost surely, 2^5557878225 is an apocalyptic number.

It is an amenable number.

5557878225 is a deficient number, since it is larger than the sum of its proper divisors (4811047407).

5557878225 is a wasteful number, since it uses less digits than its factorization.

5557878225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9527 (or 9519 counting only the distinct ones).

The product of its digits is 7840000, while the sum is 54.

The square root of 5557878225 is about 74551.1785621126. The cubic root of 5557878225 is about 1771.3444013743.

The spelling of 5557878225 in words is "five billion, five hundred fifty-seven million, eight hundred seventy-eight thousand, two hundred twenty-five".