125540050201 has 2 divisors, whose sum is σ = 125540050202. Its totient is φ = 125540050200.

The previous prime is 125540050169. The next prime is 125540050249. The reversal of 125540050201 is 102050045521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124484774976 + 1055275225 = 352824^2 + 32485^2 .

It is a cyclic number.

It is not a de Polignac number, because 125540050201 - 2⁵ = 125540050169 is a prime.

It is not a weakly prime, because it can be changed into another prime (125540080201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62770025100 + 62770025101.

It is an arithmetic number, because the mean of its divisors is an integer number (62770025101).

Almost surely, 2^125540050201 is an apocalyptic number.

It is an amenable number.

125540050201 is a deficient number, since it is larger than the sum of its proper divisors (1).

125540050201 is an equidigital number, since it uses as much as digits as its factorization.

125540050201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 125540050201 its reverse (102050045521), we get a palindrome (227590095722).

The spelling of 125540050201 in words is "one hundred twenty-five billion, five hundred forty million, fifty thousand, two hundred one".