2657484521 has 8 divisors (see below), whose sum is σ = 2677586184. Its totient is φ = 2637423360.

The previous prime is 2657484491. The next prime is 2657484541. The reversal of 2657484521 is 1254847562.

It can be written as a sum of positive squares in 4 ways, for example, as 418775296 + 2238709225 = 20464^2 + 47315^2 .

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 2657484521 - 2¹⁰ = 2657483497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2657484541) 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, 128711 + ... + 147923.

It is an arithmetic number, because the mean of its divisors is an integer number (334698273).

Almost surely, 2^2657484521 is an apocalyptic number.

It is an amenable number.

2657484521 is a deficient number, since it is larger than the sum of its proper divisors (20101663).

2657484521 is a wasteful number, since it uses less digits than its factorization.

2657484521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20251.

The product of its digits is 537600, while the sum is 44.

The square root of 2657484521 is about 51550.7955418731. The cubic root of 2657484521 is about 1385.1290823142.

The spelling of 2657484521 in words is "two billion, six hundred fifty-seven million, four hundred eighty-four thousand, five hundred twenty-one".