1250534521 has 2 divisors, whose sum is σ = 1250534522. Its totient is φ = 1250534520.

The previous prime is 1250534503. The next prime is 1250534531. The reversal of 1250534521 is 1254350521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 932447296 + 318087225 = 30536^2 + 17835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250534521 - 2⁹ = 1250534009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1250534521.

It is not a weakly prime, because it can be changed into another prime (1250534531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625267260 + 625267261.

It is an arithmetic number, because the mean of its divisors is an integer number (625267261).

Almost surely, 2^1250534521 is an apocalyptic number.

It is an amenable number.

1250534521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250534521 is an equidigital number, since it uses as much as digits as its factorization.

1250534521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1250534521 is about 35362.8975198583. The cubic root of 1250534521 is about 1077.3708685463.

The spelling of 1250534521 in words is "one billion, two hundred fifty million, five hundred thirty-four thousand, five hundred twenty-one".