1025257630 has 8 divisors (see below), whose sum is σ = 1845463752. Its totient is φ = 410103048.

The previous prime is 1025257579. The next prime is 1025257633. The reversal of 1025257630 is 367525201.

1025257630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 1025257592 and 1025257601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025257633) 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, 51262872 + ... + 51262891.

It is an arithmetic number, because the mean of its divisors is an integer number (230682969).

Almost surely, 2^1025257630 is an apocalyptic number.

1025257630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025257630 is a deficient number, since it is larger than the sum of its proper divisors (820206122).

1025257630 is a wasteful number, since it uses less digits than its factorization.

1025257630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102525770.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 1025257630 is about 32019.6444390003. The cubic root of 1025257630 is about 1008.3493050920.

The spelling of 1025257630 in words is "one billion, twenty-five million, two hundred fifty-seven thousand, six hundred thirty".