2530557901 has 2 divisors, whose sum is σ = 2530557902. Its totient is φ = 2530557900.

The previous prime is 2530557863. The next prime is 2530557917. The reversal of 2530557901 is 1097550352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2337625801 + 192932100 = 48349^2 + 13890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530557901 - 2¹³ = 2530549709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2530557961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265278950 + 1265278951.

It is an arithmetic number, because the mean of its divisors is an integer number (1265278951).

Almost surely, 2^2530557901 is an apocalyptic number.

It is an amenable number.

2530557901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530557901 is an equidigital number, since it uses as much as digits as its factorization.

2530557901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 37.

The square root of 2530557901 is about 50304.6508883622. The cubic root of 2530557901 is about 1362.7162231936.

The spelling of 2530557901 in words is "two billion, five hundred thirty million, five hundred fifty-seven thousand, nine hundred one".