1073525021 has 2 divisors, whose sum is σ = 1073525022. Its totient is φ = 1073525020.

The previous prime is 1073524999. The next prime is 1073525029. The reversal of 1073525021 is 1205253701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829728025 + 243796996 = 28805^2 + 15614^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073525021 - 2¹⁸ = 1073262877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1073525029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536762510 + 536762511.

It is an arithmetic number, because the mean of its divisors is an integer number (536762511).

Almost surely, 2^1073525021 is an apocalyptic number.

It is an amenable number.

1073525021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073525021 is an equidigital number, since it uses as much as digits as its factorization.

1073525021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1073525021 is about 32764.6916817479. The cubic root of 1073525021 is about 1023.9310755433.

Adding to 1073525021 its reverse (1205253701), we get a palindrome (2278778722).

The spelling of 1073525021 in words is "one billion, seventy-three million, five hundred twenty-five thousand, twenty-one".