2520963905 has 8 divisors (see below), whose sum is σ = 3027993000. Its totient is φ = 2014880256.

The previous prime is 2520963899. The next prime is 2520963919. The reversal of 2520963905 is 5093690252.

It can be written as a sum of positive squares in 4 ways, for example, as 387263041 + 2133700864 = 19679^2 + 46192^2 .

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 2520963905 - 2¹² = 2520959809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230480 + ... + 241169.

It is an arithmetic number, because the mean of its divisors is an integer number (378499125).

Almost surely, 2^2520963905 is an apocalyptic number.

It is an amenable number.

2520963905 is a deficient number, since it is larger than the sum of its proper divisors (507029095).

2520963905 is a wasteful number, since it uses less digits than its factorization.

2520963905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472723.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 2520963905 is about 50209.2013977518. The cubic root of 2520963905 is about 1360.9919063223.

The spelling of 2520963905 in words is "two billion, five hundred twenty million, nine hundred sixty-three thousand, nine hundred five".