1025025535 has 4 divisors (see below), whose sum is σ = 1230030648. Its totient is φ = 820020424.

The previous prime is 1025025497. The next prime is 1025025539. The reversal of 1025025535 is 5355205201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1025025535 - 2¹⁵ = 1024992767 is a prime.

It is a super-3 number, since 3×1025025535³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025025539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102502549 + ... + 102502558.

It is an arithmetic number, because the mean of its divisors is an integer number (307507662).

Almost surely, 2^1025025535 is an apocalyptic number.

1025025535 is a deficient number, since it is larger than the sum of its proper divisors (205005113).

1025025535 is an equidigital number, since it uses as much as digits as its factorization.

1025025535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205005112.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 1025025535 is about 32016.0199743816. The cubic root of 1025025535 is about 1008.2732102363.

The spelling of 1025025535 in words is "one billion, twenty-five million, twenty-five thousand, five hundred thirty-five".