1042520525 has 12 divisors (see below), whose sum is σ = 1295131764. Its totient is φ = 832464000.

The previous prime is 1042520497. The next prime is 1042520533. The reversal of 1042520525 is 5250252401.

It can be written as a sum of positive squares in 6 ways, for example, as 29626249 + 1012894276 = 5443^2 + 31826^2 .

It is not a de Polignac number, because 1042520525 - 2¹⁰ = 1042519501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042520494 and 1042520503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25016 + ... + 52065.

It is an arithmetic number, because the mean of its divisors is an integer number (107927647).

Almost surely, 2^1042520525 is an apocalyptic number.

It is an amenable number.

1042520525 is a deficient number, since it is larger than the sum of its proper divisors (252611239).

1042520525 is an equidigital number, since it uses as much as digits as its factorization.

1042520525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77632 (or 77627 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1042520525 is about 32288.0864251817. The cubic root of 1042520525 is about 1013.9772350225.

Adding to 1042520525 its reverse (5250252401), we get a palindrome (6292772926).

The spelling of 1042520525 in words is "one billion, forty-two million, five hundred twenty thousand, five hundred twenty-five".