1051250257 has 2 divisors, whose sum is σ = 1051250258. Its totient is φ = 1051250256.

The previous prime is 1051250231. The next prime is 1051250273. The reversal of 1051250257 is 7520521501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 918332416 + 132917841 = 30304^2 + 11529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051250257 is a prime.

It is a super-2 number, since 2×1051250257² = 2210254205685132098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051250227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525625128 + 525625129.

It is an arithmetic number, because the mean of its divisors is an integer number (525625129).

Almost surely, 2^1051250257 is an apocalyptic number.

It is an amenable number.

1051250257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051250257 is an equidigital number, since it uses as much as digits as its factorization.

1051250257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 1051250257 is about 32422.9896369844. The cubic root of 1051250257 is about 1016.7996116152.

Adding to 1051250257 its reverse (7520521501), we get a palindrome (8571771758).

The spelling of 1051250257 in words is "one billion, fifty-one million, two hundred fifty thousand, two hundred fifty-seven".