1025602613 has 4 divisors (see below), whose sum is σ = 1172117280. Its totient is φ = 879087948.

The previous prime is 1025602609. The next prime is 1025602619. The reversal of 1025602613 is 3162065201.

1025602613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1025602613 - 2² = 1025602609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025602619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73257323 + ... + 73257336.

It is an arithmetic number, because the mean of its divisors is an integer number (293029320).

Almost surely, 2^1025602613 is an apocalyptic number.

It is an amenable number.

1025602613 is a deficient number, since it is larger than the sum of its proper divisors (146514667).

1025602613 is an equidigital number, since it uses as much as digits as its factorization.

1025602613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146514666.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1025602613 is about 32025.0310382363. The cubic root of 1025602613 is about 1008.4623902810.

Adding to 1025602613 its reverse (3162065201), we get a palindrome (4187667814).

The spelling of 1025602613 in words is "one billion, twenty-five million, six hundred two thousand, six hundred thirteen".