2540300125513 has 8 divisors (see below), whose sum is σ = 2609019606600. Its totient is φ = 2471583945600.

The previous prime is 2540300125453. The next prime is 2540300125523. The reversal of 2540300125513 is 3155210030452.

It can be written as a sum of positive squares in 4 ways, for example, as 2325219367689 + 215080757824 = 1524867^2 + 463768^2 .

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 2540300125513 - 2¹³ = 2540300117321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540300125523) 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, 776013 + ... + 2383861.

It is an arithmetic number, because the mean of its divisors is an integer number (326127450825).

Almost surely, 2^{2540300125513} is an apocalyptic number.

It is an amenable number.

2540300125513 is a deficient number, since it is larger than the sum of its proper divisors (68719481087).

2540300125513 is a wasteful number, since it uses less digits than its factorization.

2540300125513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650587.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 2540300125513 its reverse (3155210030452), we get a palindrome (5695510155965).

The spelling of 2540300125513 in words is "two trillion, five hundred forty billion, three hundred million, one hundred twenty-five thousand, five hundred thirteen".