1025115251200 has 240 divisors, whose sum is σ = 2612041245000. Its totient is φ = 398414315520.

The previous prime is 1025115251183. The next prime is 1025115251203. The reversal of 1025115251200 is 21525115201.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 158964879616 + 866150371584 = 398704^2 + 930672^2 .

It is a super-2 number, since 2×1025115251200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1025115251203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591525534 + ... + 591527266.

Almost surely, 2^{1025115251200} is an apocalyptic number.

1025115251200 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 1025115251200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306020622500).

1025115251200 is an abundant number, since it is smaller than the sum of its proper divisors (1586925993800).

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

1025115251200 is a wasteful number, since it uses less digits than its factorization.

1025115251200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047 (or 3026 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 1025115251200 in words is "one trillion, twenty-five billion, one hundred fifteen million, two hundred fifty-one thousand, two hundred".