12575551 has 2 divisors, whose sum is σ = 12575552. Its totient is φ = 12575550.

The previous prime is 12575527. The next prime is 12575567. The reversal of 12575551 is 15557521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12575551 - 2²¹ = 10478399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12575501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6287775 + 6287776.

It is an arithmetic number, because the mean of its divisors is an integer number (6287776).

Almost surely, 2^12575551 is an apocalyptic number.

12575551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12575551 is an equidigital number, since it uses as much as digits as its factorization.

12575551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8750, while the sum is 31.

The square root of 12575551 is about 3546.2023348929. The cubic root of 12575551 is about 232.5460717270.

The spelling of 12575551 in words is "twelve million, five hundred seventy-five thousand, five hundred fifty-one".