125855817026 has 4 divisors (see below), whose sum is σ = 188783725542. Its totient is φ = 62927908512.

The previous prime is 125855816971. The next prime is 125855817029. The reversal of 125855817026 is 620718558521.

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., 90993325801 + 34862491225 = 301651^2 + 186715^2 .

It is not an unprimeable number, because it can be changed into a prime (125855817029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31463954255 + ... + 31463954258.

Almost surely, 2^125855817026 is an apocalyptic number.

125855817026 is a deficient number, since it is larger than the sum of its proper divisors (62927908516).

125855817026 is an equidigital number, since it uses as much as digits as its factorization.

125855817026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62927908515.

The product of its (nonzero) digits is 1344000, while the sum is 50.

The spelling of 125855817026 in words is "one hundred twenty-five billion, eight hundred fifty-five million, eight hundred seventeen thousand, twenty-six".