2154525013 has 4 divisors (see below), whose sum is σ = 2154661600. Its totient is φ = 2154388428.

The previous prime is 2154524921. The next prime is 2154525047. The reversal of 2154525013 is 3105254512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2154525013 - 2²¹ = 2152427861 is a prime.

It is a super-3 number, since 3×2154525013³ (a number of 29 digits) contains 333 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 (2154525613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40995 + ... + 77392.

It is an arithmetic number, because the mean of its divisors is an integer number (538665400).

Almost surely, 2^2154525013 is an apocalyptic number.

It is an amenable number.

2154525013 is a deficient number, since it is larger than the sum of its proper divisors (136587).

2154525013 is a wasteful number, since it uses less digits than its factorization.

2154525013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136586.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2154525013 is about 46416.8613006093. The cubic root of 2154525013 is about 1291.5677138283.

Adding to 2154525013 its reverse (3105254512), we get a palindrome (5259779525).

The spelling of 2154525013 in words is "two billion, one hundred fifty-four million, five hundred twenty-five thousand, thirteen".