1012625250 has 256 divisors, whose sum is σ = 3202827264. Its totient is φ = 207360000.

The previous prime is 1012625221. The next prime is 1012625269. The reversal of 1012625250 is 525262101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012625250.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2525050 + ... + 2525450.

It is an arithmetic number, because the mean of its divisors is an integer number (12511044).

Almost surely, 2^1012625250 is an apocalyptic number.

1012625250 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 1012625250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601413632).

1012625250 is an abundant number, since it is smaller than the sum of its proper divisors (2190202014).

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

1012625250 is a wasteful number, since it uses less digits than its factorization.

1012625250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1012625250 is about 31821.7732064070. The cubic root of 1012625250 is about 1004.1908290837.

Adding to 1012625250 its reverse (525262101), we get a palindrome (1537887351).

The spelling of 1012625250 in words is "one billion, twelve million, six hundred twenty-five thousand, two hundred fifty".