61017675225 has 48 divisors (see below), whose sum is σ = 109271047872. Its totient is φ = 29865749760.

The previous prime is 61017675203. The next prime is 61017675239. The reversal of 61017675225 is 52257671016.

It is a happy number.

It is not a de Polignac number, because 61017675225 - 2⁶ = 61017675161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12199 + ... + 349548.

It is an arithmetic number, because the mean of its divisors is an integer number (2276480164).

Almost surely, 2^61017675225 is an apocalyptic number.

61017675225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61017675225 is a deficient number, since it is larger than the sum of its proper divisors (48253372647).

61017675225 is a wasteful number, since it uses less digits than its factorization.

61017675225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361946 (or 361941 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 61017675225 in words is "sixty-one billion, seventeen million, six hundred seventy-five thousand, two hundred twenty-five".