1025115630 has 96 divisors (see below), whose sum is σ = 3090673152. Its totient is φ = 213005760.

The previous prime is 1025115563. The next prime is 1025115631. The reversal of 1025115630 is 365115201.

It is a self number, because there is not a number n which added to its sum of digits gives 1025115630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025115631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5239 + ... + 45581.

It is an arithmetic number, because the mean of its divisors is an integer number (32194512).

Almost surely, 2^1025115630 is an apocalyptic number.

1025115630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025115630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1545336576).

1025115630 is an abundant number, since it is smaller than the sum of its proper divisors (2065557522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025115630 is a wasteful number, since it uses less digits than its factorization.

1025115630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40382 (or 40371 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1025115630 is about 32017.4269734468. The cubic root of 1025115630 is about 1008.3027502203.

The spelling of 1025115630 in words is "one billion, twenty-five million, one hundred fifteen thousand, six hundred thirty".