2512123545 has 16 divisors (see below), whose sum is σ = 4056275520. Its totient is φ = 1327506624.

The previous prime is 2512123531. The next prime is 2512123553. The reversal of 2512123545 is 5453212152.

It is not a de Polignac number, because 2512123545 - 2⁴ = 2512123529 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766599 + ... + 769868.

It is an arithmetic number, because the mean of its divisors is an integer number (253517220).

Almost surely, 2^2512123545 is an apocalyptic number.

It is an amenable number.

2512123545 is a deficient number, since it is larger than the sum of its proper divisors (1544151975).

2512123545 is a wasteful number, since it uses less digits than its factorization.

2512123545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536584.

The product of its digits is 12000, while the sum is 30.

The square root of 2512123545 is about 50121.0888249647. The cubic root of 2512123545 is about 1359.3991623978.

Adding to 2512123545 its reverse (5453212152), we get a palindrome (7965335697).

The spelling of 2512123545 in words is "two billion, five hundred twelve million, one hundred twenty-three thousand, five hundred forty-five".