12455044057 has 4 divisors (see below), whose sum is σ = 12479806080. Its totient is φ = 12430282036.

The previous prime is 12455044037. The next prime is 12455044061. The reversal of 12455044057 is 75044055421.

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 a cyclic number.

It is not a de Polignac number, because 12455044057 - 2²³ = 12446655449 is a prime.

It is a super-2 number, since 2×12455044057² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12455044037) 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, 12380257 + ... + 12381262.

It is an arithmetic number, because the mean of its divisors is an integer number (3119951520).

Almost surely, 2^12455044057 is an apocalyptic number.

It is an amenable number.

12455044057 is a deficient number, since it is larger than the sum of its proper divisors (24762023).

12455044057 is an equidigital number, since it uses as much as digits as its factorization.

12455044057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24762022.

The product of its (nonzero) digits is 112000, while the sum is 37.

Adding to 12455044057 its reverse (75044055421), we get a palindrome (87499099478).

The spelling of 12455044057 in words is "twelve billion, four hundred fifty-five million, forty-four thousand, fifty-seven".