125625240261 has 12 divisors (see below), whose sum is σ = 182408728320. Its totient is φ = 83311676520.

The previous prime is 125625240253. The next prime is 125625240283. The reversal of 125625240261 is 162042526521.

125625240261 is a `hidden beast` number, since 1 + 2 + 5 + 625 + 2 + 4 + 0 + 26 + 1 = 666.

It is not a de Polignac number, because 125625240261 - 2³ = 125625240253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125625248261) 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, 36538491 + ... + 36541928.

It is an arithmetic number, because the mean of its divisors is an integer number (15200727360).

Almost surely, 2^125625240261 is an apocalyptic number.

It is an amenable number.

125625240261 is a deficient number, since it is larger than the sum of its proper divisors (56783488059).

125625240261 is a wasteful number, since it uses less digits than its factorization.

125625240261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73080616 (or 73080613 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 125625240261 its reverse (162042526521), we get a palindrome (287667766782).

The spelling of 125625240261 in words is "one hundred twenty-five billion, six hundred twenty-five million, two hundred forty thousand, two hundred sixty-one".