12551061 has 4 divisors (see below), whose sum is σ = 16734752. Its totient is φ = 8367372.

The previous prime is 12551059. The next prime is 12551101. The reversal of 12551061 is 16015521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12551061 - 2¹ = 12551059 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091841 + ... + 2091846.

It is an arithmetic number, because the mean of its divisors is an integer number (4183688).

Almost surely, 2^12551061 is an apocalyptic number.

It is an amenable number.

12551061 is a deficient number, since it is larger than the sum of its proper divisors (4183691).

12551061 is an equidigital number, since it uses as much as digits as its factorization.

12551061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183690.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 12551061 is about 3542.7476624789. The cubic root of 12551061 is about 232.3950179294.

Adding to 12551061 its reverse (16015521), we get a palindrome (28566582).

The spelling of 12551061 in words is "twelve million, five hundred fifty-one thousand, sixty-one".