1025838851 has 4 divisors (see below), whose sum is σ = 1039891512. Its totient is φ = 1011786192.

The previous prime is 1025838833. The next prime is 1025838857. The reversal of 1025838851 is 1588385201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025838851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025838799 and 1025838808.

It is not an unprimeable number, because it can be changed into a prime (1025838857) 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, 7026221 + ... + 7026366.

It is an arithmetic number, because the mean of its divisors is an integer number (259972878).

Almost surely, 2^1025838851 is an apocalyptic number.

1025838851 is a deficient number, since it is larger than the sum of its proper divisors (14052661).

1025838851 is an equidigital number, since it uses as much as digits as its factorization.

1025838851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14052660.

The product of its (nonzero) digits is 76800, while the sum is 41.

The square root of 1025838851 is about 32028.7191595293. The cubic root of 1025838851 is about 1008.5398143065.

The spelling of 1025838851 in words is "one billion, twenty-five million, eight hundred thirty-eight thousand, eight hundred fifty-one".