61473887225 has 12 divisors (see below), whose sum is σ = 76475928144. Its totient is φ = 49018911120.

The previous prime is 61473887173. The next prime is 61473887243. The reversal of 61473887225 is 52278837416.

It is not a de Polignac number, because 61473887225 - 2²⁰ = 61472838649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3997139 + ... + 4012488.

It is an arithmetic number, because the mean of its divisors is an integer number (6372994012).

Almost surely, 2^61473887225 is an apocalyptic number.

It is an amenable number.

61473887225 is a deficient number, since it is larger than the sum of its proper divisors (15002040919).

61473887225 is a wasteful number, since it uses less digits than its factorization.

61473887225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8009944 (or 8009939 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The spelling of 61473887225 in words is "sixty-one billion, four hundred seventy-three million, eight hundred eighty-seven thousand, two hundred twenty-five".