12778053 has 4 divisors (see below), whose sum is σ = 17037408. Its totient is φ = 8518700.

The previous prime is 12778037. The next prime is 12778063. The reversal of 12778053 is 35087721.

12778053 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35087721 = 3 ⋅11695907.

It is a cyclic number.

It is not a de Polignac number, because 12778053 - 2⁴ = 12778037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12778063) 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, 2129673 + ... + 2129678.

It is an arithmetic number, because the mean of its divisors is an integer number (4259352).

Almost surely, 2^12778053 is an apocalyptic number.

It is an amenable number.

12778053 is a deficient number, since it is larger than the sum of its proper divisors (4259355).

12778053 is an equidigital number, since it uses as much as digits as its factorization.

12778053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259354.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 12778053 is about 3574.6402616207. The cubic root of 12778053 is about 233.7876479534.

The spelling of 12778053 in words is "twelve million, seven hundred seventy-eight thousand, fifty-three".