125725918202 has 4 divisors (see below), whose sum is σ = 188588877306. Its totient is φ = 62862959100.

The previous prime is 125725918177. The next prime is 125725918207. The reversal of 125725918202 is 202819527521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 84942519601 + 40783398601 = 291449^2 + 201949^2 .

It is not an unprimeable number, because it can be changed into a prime (125725918207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31431479549 + ... + 31431479552.

Almost surely, 2^125725918202 is an apocalyptic number.

125725918202 is a deficient number, since it is larger than the sum of its proper divisors (62862959104).

125725918202 is an equidigital number, since it uses as much as digits as its factorization.

125725918202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62862959103.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 125725918202 in words is "one hundred twenty-five billion, seven hundred twenty-five million, nine hundred eighteen thousand, two hundred two".