1025115000 has 320 divisors, whose sum is σ = 3946736640. Its totient is φ = 216000000.

The previous prime is 1025114957. The next prime is 1025115001. The reversal of 1025115000 is 5115201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025115001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1364625 + ... + 1365375.

It is an arithmetic number, because the mean of its divisors is an integer number (12333552).

Almost surely, 2^1025115000 is an apocalyptic number.

1025115000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025115000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1973368320).

1025115000 is an abundant number, since it is smaller than the sum of its proper divisors (2921621640).

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

1025115000 is a wasteful number, since it uses less digits than its factorization.

1025115000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1025115000 is about 32017.4171350532. The cubic root of 1025115000 is about 1008.3025436644.

The spelling of 1025115000 in words is "one billion, twenty-five million, one hundred fifteen thousand".