1525828061 has 2 divisors, whose sum is σ = 1525828062. Its totient is φ = 1525828060.

The previous prime is 1525828019. The next prime is 1525828063. The reversal of 1525828061 is 1608285251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1028805625 + 497022436 = 32075^2 + 22294^2 .

It is an emirp because it is prime and its reverse (1608285251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525828061 is a prime.

Together with 1525828063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525828063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762914030 + 762914031.

It is an arithmetic number, because the mean of its divisors is an integer number (762914031).

Almost surely, 2^1525828061 is an apocalyptic number.

It is an amenable number.

1525828061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525828061 is an equidigital number, since it uses as much as digits as its factorization.

1525828061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 1525828061 is about 39061.8491753783. The cubic root of 1525828061 is about 1151.2470557781.

The spelling of 1525828061 in words is "one billion, five hundred twenty-five million, eight hundred twenty-eight thousand, sixty-one".