125771253270 has 32 divisors (see below), whose sum is σ = 325070317152. Its totient is φ = 30959077632.

The previous prime is 125771253253. The next prime is 125771253277. The reversal of 125771253270 is 72352177521.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125771253277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161244807 + ... + 161245586.

It is an arithmetic number, because the mean of its divisors is an integer number (10158447411).

Almost surely, 2^125771253270 is an apocalyptic number.

125771253270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125771253270 is an abundant number, since it is smaller than the sum of its proper divisors (199299063882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125771253270 is a wasteful number, since it uses less digits than its factorization.

125771253270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322490416.

The product of its (nonzero) digits is 205800, while the sum is 42.

The spelling of 125771253270 in words is "one hundred twenty-five billion, seven hundred seventy-one million, two hundred fifty-three thousand, two hundred seventy".