12545003501 has 8 divisors (see below), whose sum is σ = 12680277624. Its totient is φ = 12409850880.

The previous prime is 12545003491. The next prime is 12545003503. The reversal of 12545003501 is 10530054521.

It can be written as a sum of positive squares in 4 ways, for example, as 8765827876 + 3779175625 = 93626^2 + 61475^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12545003501 - 2⁶ = 12545003437 is a prime.

It is a super-2 number, since 2×12545003501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545003503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185441 + ... + 243881.

It is an arithmetic number, because the mean of its divisors is an integer number (1585034703).

Almost surely, 2^12545003501 is an apocalyptic number.

It is an amenable number.

12545003501 is a deficient number, since it is larger than the sum of its proper divisors (135274123).

12545003501 is an equidigital number, since it uses as much as digits as its factorization.

12545003501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60751.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 12545003501 in words is "twelve billion, five hundred forty-five million, three thousand, five hundred one".