2519254021 has 8 divisors (see below), whose sum is σ = 2705016384. Its totient is φ = 2337666240.

The previous prime is 2519254013. The next prime is 2519254033. The reversal of 2519254021 is 1204529152.

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 2519254021 - 2³ = 2519254013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2519254081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042395 + ... + 1044808.

It is an arithmetic number, because the mean of its divisors is an integer number (338127048).

Almost surely, 2^2519254021 is an apocalyptic number.

It is an amenable number.

2519254021 is a deficient number, since it is larger than the sum of its proper divisors (185762363).

2519254021 is a wasteful number, since it uses less digits than its factorization.

2519254021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087291.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2519254021 is about 50192.1709134004. The cubic root of 2519254021 is about 1360.6841319008.

The spelling of 2519254021 in words is "two billion, five hundred nineteen million, two hundred fifty-four thousand, twenty-one".