5491974729225 has 12 divisors (see below), whose sum is σ = 9080064885776. Its totient is φ = 2929053188880.

The previous prime is 5491974729223. The next prime is 5491974729251. The reversal of 5491974729225 is 5229274791945.

It is not a de Polignac number, because 5491974729225 - 2¹ = 5491974729223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5491974729223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36613164787 + ... + 36613164936.

Almost surely, 2^{5491974729225} is an apocalyptic number.

It is an amenable number.

5491974729225 is a deficient number, since it is larger than the sum of its proper divisors (3588090156551).

5491974729225 is a wasteful number, since it uses less digits than its factorization.

5491974729225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73226329736 (or 73226329731 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 66.

The spelling of 5491974729225 in words is "five trillion, four hundred ninety-one billion, nine hundred seventy-four million, seven hundred twenty-nine thousand, two hundred twenty-five".