13250531152546 has 4 divisors (see below), whose sum is σ = 19875796728822. Its totient is φ = 6625265576272.

The previous prime is 13250531152511. The next prime is 13250531152561. The reversal of 13250531152546 is 64525113505231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7555840966521 + 5694690186025 = 2748789^2 + 2386355^2 .

It is a super-3 number, since 3×13250531152546³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3312632788135 + ... + 3312632788138.

Almost surely, 2^{13250531152546} is an apocalyptic number.

13250531152546 is a deficient number, since it is larger than the sum of its proper divisors (6625265576276).

13250531152546 is an equidigital number, since it uses as much as digits as its factorization.

13250531152546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625265576275.

The product of its (nonzero) digits is 540000, while the sum is 43.

Adding to 13250531152546 its reverse (64525113505231), we get a palindrome (77775644657777).

The spelling of 13250531152546 in words is "thirteen trillion, two hundred fifty billion, five hundred thirty-one million, one hundred fifty-two thousand, five hundred forty-six".