2520459561 has 8 divisors (see below), whose sum is σ = 3360883840. Its totient is φ = 1680170832.

The previous prime is 2520459547. The next prime is 2520459569. The reversal of 2520459561 is 1659540252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2520459561 - 2¹⁸ = 2520197417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2520459569) 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, 23280 + ... + 74718.

It is an arithmetic number, because the mean of its divisors is an integer number (420110480).

Almost surely, 2^2520459561 is an apocalyptic number.

It is an amenable number.

2520459561 is a deficient number, since it is larger than the sum of its proper divisors (840424279).

2520459561 is a wasteful number, since it uses less digits than its factorization.

2520459561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67775.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 2520459561 is about 50204.1787205009. The cubic root of 2520459561 is about 1360.9011402625.

The spelling of 2520459561 in words is "two billion, five hundred twenty million, four hundred fifty-nine thousand, five hundred sixty-one".