1006611251 has 2 divisors, whose sum is σ = 1006611252. Its totient is φ = 1006611250.

The previous prime is 1006611161. The next prime is 1006611299. The reversal of 1006611251 is 1521166001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1006611251 - 2²⁶ = 939502387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1006616251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503305625 + 503305626.

It is an arithmetic number, because the mean of its divisors is an integer number (503305626).

Almost surely, 2^1006611251 is an apocalyptic number.

1006611251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006611251 is an equidigital number, since it uses as much as digits as its factorization.

1006611251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1006611251 is about 31727.1374536059. The cubic root of 1006611251 is about 1002.1989115771.

Adding to 1006611251 its reverse (1521166001), we get a palindrome (2527777252).

The spelling of 1006611251 in words is "one billion, six million, six hundred eleven thousand, two hundred fifty-one".