61276376225 has 12 divisors (see below), whose sum is σ = 75994025580. Its totient is φ = 49013798400.

The previous prime is 61276376209. The next prime is 61276376237. The reversal of 61276376225 is 52267367216.

It can be written as a sum of positive squares in 6 ways, for example, as 5614355041 + 55662021184 = 74929^2 + 235928^2 .

It is not a de Polignac number, because 61276376225 - 2⁴ = 61276376209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61276376225.

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, 8120 + ... + 350169.

It is an arithmetic number, because the mean of its divisors is an integer number (6332835465).

Almost surely, 2^61276376225 is an apocalyptic number.

It is an amenable number.

61276376225 is a deficient number, since it is larger than the sum of its proper divisors (14717649355).

61276376225 is a wasteful number, since it uses less digits than its factorization.

61276376225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365140 (or 365135 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 47.

Subtracting from 61276376225 its reverse (52267367216), we obtain a palindrome (9009009009).

The spelling of 61276376225 in words is "sixty-one billion, two hundred seventy-six million, three hundred seventy-six thousand, two hundred twenty-five".