1051263250 has 16 divisors (see below), whose sum is σ = 1967965272. Its totient is φ = 420505200.

The previous prime is 1051263229. The next prime is 1051263251. The reversal of 1051263250 is 523621501.

It can be written as a sum of positive squares in 4 ways, for example, as 127893481 + 923369769 = 11309^2 + 30387^2 .

It is a super-2 number, since 2×1051263250² = 2210308841601125000, which 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 (1051263251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2102277 + ... + 2102776.

Almost surely, 2^1051263250 is an apocalyptic number.

1051263250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1051263250 is a deficient number, since it is larger than the sum of its proper divisors (916702022).

1051263250 is an equidigital number, since it uses as much as digits as its factorization.

1051263250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205070 (or 4205060 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1051263250 is about 32423.1900034528. The cubic root of 1051263250 is about 1016.8038006662.

Adding to 1051263250 its reverse (523621501), we get a palindrome (1574884751).

The spelling of 1051263250 in words is "one billion, fifty-one million, two hundred sixty-three thousand, two hundred fifty".