12542415057 has 32 divisors (see below), whose sum is σ = 19788226560. Its totient is φ = 7824211200.

The previous prime is 12542415029. The next prime is 12542415089. The reversal of 12542415057 is 75051424521.

12542415057 is a `hidden beast` number, since 12 + 542 + 4 + 1 + 50 + 57 = 666.

It is not a de Polignac number, because 12542415057 - 2¹⁰ = 12542414033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12542415007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432 + ... + 158382.

It is an arithmetic number, because the mean of its divisors is an integer number (618382080).

Almost surely, 2^12542415057 is an apocalyptic number.

12542415057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12542415057 is a deficient number, since it is larger than the sum of its proper divisors (7245811503).

12542415057 is a wasteful number, since it uses less digits than its factorization.

12542415057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158150 (or 158144 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

Adding to 12542415057 its reverse (75051424521), we get a palindrome (87593839578).

The spelling of 12542415057 in words is "twelve billion, five hundred forty-two million, four hundred fifteen thousand, fifty-seven".