1250531206501 has 2 divisors, whose sum is σ = 1250531206502. Its totient is φ = 1250531206500.

The previous prime is 1250531206433. The next prime is 1250531206513. The reversal of 1250531206501 is 1056021350521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1249175052225 + 1356154276 = 1117665^2 + 36826^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250531206501 - 2²⁷ = 1250396988773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250531206531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625265603250 + 625265603251.

It is an arithmetic number, because the mean of its divisors is an integer number (625265603251).

Almost surely, 2^{1250531206501} is an apocalyptic number.

It is an amenable number.

1250531206501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250531206501 is an equidigital number, since it uses as much as digits as its factorization.

1250531206501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 1250531206501 in words is "one trillion, two hundred fifty billion, five hundred thirty-one million, two hundred six thousand, five hundred one".