2517521427 has 24 divisors (see below), whose sum is σ = 3661339968. Its totient is φ = 1666886400.

The previous prime is 2517521417. The next prime is 2517521441. The reversal of 2517521427 is 7241257152.

It is a de Polignac number, because none of the positive numbers 2^k-2517521427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2517521391 and 2517521400.

It is not an unprimeable number, because it can be changed into a prime (2517521417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 933493 + ... + 936185.

It is an arithmetic number, because the mean of its divisors is an integer number (152555832).

Almost surely, 2^2517521427 is an apocalyptic number.

2517521427 is a deficient number, since it is larger than the sum of its proper divisors (1143818541).

2517521427 is a wasteful number, since it uses less digits than its factorization.

2517521427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3368 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 2517521427 is about 50174.9083407235. The cubic root of 2517521427 is about 1360.3721276590.

Adding to 2517521427 its reverse (7241257152), we get a palindrome (9758778579).

The spelling of 2517521427 in words is "two billion, five hundred seventeen million, five hundred twenty-one thousand, four hundred twenty-seven".