1051045225 has 12 divisors (see below), whose sum is σ = 1303922124. Its totient is φ = 840432320.

The previous prime is 1051045223. The next prime is 1051045277. The reversal of 1051045225 is 5225401501.

It can be written as a sum of positive squares in 6 ways, for example, as 14462809 + 1036582416 = 3803^2 + 32196^2 .

It is not a de Polignac number, because 1051045225 - 2¹ = 1051045223 is a prime.

It is a super-2 number, since 2×1051045225² = 2209392129990601250, which contains 22 as substring.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1051045225.

It is not an unprimeable number, because it can be changed into a prime (1051045223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50007 + ... + 67843.

It is an arithmetic number, because the mean of its divisors is an integer number (108660177).

Almost surely, 2^1051045225 is an apocalyptic number.

It is an amenable number.

1051045225 is a deficient number, since it is larger than the sum of its proper divisors (252876899).

1051045225 is a wasteful number, since it uses less digits than its factorization.

1051045225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204 (or 20199 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1051045225 is about 32419.8276522254. The cubic root of 1051045225 is about 1016.7335030264.

Adding to 1051045225 its reverse (5225401501), we get a palindrome (6276446726).

The spelling of 1051045225 in words is "one billion, fifty-one million, forty-five thousand, two hundred twenty-five".