1051225000 has 96 divisors (see below), whose sum is σ = 2816069760. Its totient is φ = 360360000.

The previous prime is 1051224997. The next prime is 1051225001. The reversal of 1051225000 is 5221501.

It is a super-2 number, since 2×1051225000² = 2210148001250000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051225001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171997 + ... + 178003.

It is an arithmetic number, because the mean of its divisors is an integer number (29334060).

Almost surely, 2^1051225000 is an apocalyptic number.

1051225000 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 1051225000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408034880).

1051225000 is an abundant number, since it is smaller than the sum of its proper divisors (1764844760).

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

1051225000 is an frugal number, since it uses more digits than its factorization.

1051225000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045 (or 6021 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1051225000 is about 32422.6001424932. The cubic root of 1051225000 is about 1016.7914684500.

Adding to 1051225000 its reverse (5221501), we get a palindrome (1056446501).

The spelling of 1051225000 in words is "one billion, fifty-one million, two hundred twenty-five thousand".