1025825837 has 8 divisors (see below), whose sum is σ = 1054363320. Its totient is φ = 997666560.

The previous prime is 1025825833. The next prime is 1025825891. The reversal of 1025825837 is 7385285201.

It can be written as a sum of positive squares in 4 ways, for example, as 83704201 + 942121636 = 9149^2 + 30694^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1025825837 - 2² = 1025825833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025825794 and 1025825803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025825831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89048 + ... + 99905.

It is an arithmetic number, because the mean of its divisors is an integer number (131795415).

Almost surely, 2^1025825837 is an apocalyptic number.

It is an amenable number.

1025825837 is a deficient number, since it is larger than the sum of its proper divisors (28537483).

1025825837 is an equidigital number, since it uses as much as digits as its factorization.

1025825837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189103.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 1025825837 is about 32028.5159974670. The cubic root of 1025825837 is about 1008.5355494415.

The spelling of 1025825837 in words is "one billion, twenty-five million, eight hundred twenty-five thousand, eight hundred thirty-seven".