5491570225 has 6 divisors (see below), whose sum is σ = 6809547110. Its totient is φ = 4393256160.

The previous prime is 5491570223. The next prime is 5491570261. The reversal of 5491570225 is 5220751945.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 845239329 + 4646330896 = 29073^2 + 68164^2 .

It is not a de Polignac number, because 5491570225 - 2¹ = 5491570223 is a prime.

It is a super-2 number, since 2×5491570225² = 60314687072213101250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5491570223) 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, 109831380 + ... + 109831429.

Almost surely, 2^5491570225 is an apocalyptic number.

It is an amenable number.

5491570225 is a deficient number, since it is larger than the sum of its proper divisors (1317976885).

5491570225 is a wasteful number, since it uses less digits than its factorization.

5491570225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219662819 (or 219662814 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 5491570225 is about 74105.1295458013. The cubic root of 5491570225 is about 1764.2718870761.

The spelling of 5491570225 in words is "five billion, four hundred ninety-one million, five hundred seventy thousand, two hundred twenty-five".