12541562258 has 4 divisors (see below), whose sum is σ = 18812343390. Its totient is φ = 6270781128.

The previous prime is 12541562249. The next prime is 12541562261. The reversal of 12541562258 is 85226514521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85226514521 = 641 ⋅132958681.

It can be written as a sum of positive squares in only one way, i.e., 8425954849 + 4115607409 = 91793^2 + 64153^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3135390563 + ... + 3135390566.

Almost surely, 2^12541562258 is an apocalyptic number.

12541562258 is a deficient number, since it is larger than the sum of its proper divisors (6270781132).

12541562258 is an equidigital number, since it uses as much as digits as its factorization.

12541562258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6270781131.

The product of its digits is 192000, while the sum is 41.

The spelling of 12541562258 in words is "twelve billion, five hundred forty-one million, five hundred sixty-two thousand, two hundred fifty-eight".