1250551 has 2 divisors, whose sum is σ = 1250552. Its totient is φ = 1250550.

The previous prime is 1250527. The next prime is 1250593. The reversal of 1250551 is 1550521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1250551 - 2⁵ = 1250519 is a prime.

It is a Chen prime.

1250551 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625275 + 625276.

It is an arithmetic number, because the mean of its divisors is an integer number (625276).

2^1250551 is an apocalyptic number.

1250551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250551 is an equidigital number, since it uses as much as digits as its factorization.

1250551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1250551 is about 1118.2803762921. The cubic root of 1250551 is about 107.7375600900.

The spelling of 1250551 in words is "one million, two hundred fifty thousand, five hundred fifty-one".