2528061901 has 2 divisors, whose sum is σ = 2528061902. Its totient is φ = 2528061900.

The previous prime is 2528061871. The next prime is 2528061947. The reversal of 2528061901 is 1091608252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1532722500 + 995339401 = 39150^2 + 31549^2 .

It is a cyclic number.

It is not a de Polignac number, because 2528061901 - 2⁵ = 2528061869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2528001901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264030950 + 1264030951.

It is an arithmetic number, because the mean of its divisors is an integer number (1264030951).

Almost surely, 2^2528061901 is an apocalyptic number.

It is an amenable number.

2528061901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528061901 is an equidigital number, since it uses as much as digits as its factorization.

2528061901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 2528061901 is about 50279.8359285310. The cubic root of 2528061901 is about 1362.2680402585.

The spelling of 2528061901 in words is "two billion, five hundred twenty-eight million, sixty-one thousand, nine hundred one".