126502650025 has 6 divisors (see below), whose sum is σ = 156863286062. Its totient is φ = 101202120000.

The previous prime is 126502650023. The next prime is 126502650077. The reversal of 126502650025 is 520056205621.

It can be written as a sum of positive squares in 3 ways, for example, as 11258695449 + 115243954576 = 106107^2 + 339476^2 .

It is not a de Polignac number, because 126502650025 - 2¹ = 126502650023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126502650023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2530052976 + ... + 2530053025.

Almost surely, 2^126502650025 is an apocalyptic number.

It is an amenable number.

126502650025 is a deficient number, since it is larger than the sum of its proper divisors (30360636037).

126502650025 is an equidigital number, since it uses as much as digits as its factorization.

126502650025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060106011 (or 5060106006 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 126502650025 its reverse (520056205621), we get a palindrome (646558855646).

The spelling of 126502650025 in words is "one hundred twenty-six billion, five hundred two million, six hundred fifty thousand, twenty-five".