12877551 has 18 divisors (see below), whose sum is σ = 19763432. Its totient is φ = 8078400.

The previous prime is 12877547. The next prime is 12877561. The reversal of 12877551 is 15577821.

It is not a de Polignac number, because 12877551 - 2² = 12877547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12877561) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 126 + ... + 5076.

Almost surely, 2^12877551 is an apocalyptic number.

12877551 is a deficient number, since it is larger than the sum of its proper divisors (6885881).

12877551 is a wasteful number, since it uses less digits than its factorization.

12877551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991 (or 4971 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 12877551 is about 3588.5304791795. The cubic root of 12877551 is about 234.3928858884.

The spelling of 12877551 in words is "twelve million, eight hundred seventy-seven thousand, five hundred fifty-one".