1055040251 has 2 divisors, whose sum is σ = 1055040252. Its totient is φ = 1055040250.

The previous prime is 1055040229. The next prime is 1055040257. The reversal of 1055040251 is 1520405501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055040251 is a prime.

It is a super-2 number, since 2×1055040251² = 2226219862460286002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055040257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527520125 + 527520126.

It is an arithmetic number, because the mean of its divisors is an integer number (527520126).

Almost surely, 2^1055040251 is an apocalyptic number.

1055040251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055040251 is an equidigital number, since it uses as much as digits as its factorization.

1055040251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1055040251 is about 32481.3831448108. The cubic root of 1055040251 is about 1018.0200766585.

Adding to 1055040251 its reverse (1520405501), we get a palindrome (2575445752).

The spelling of 1055040251 in words is "one billion, fifty-five million, forty thousand, two hundred fifty-one".