2571520655 has 8 divisors (see below), whose sum is σ = 3366354384. Its totient is φ = 1870196800.

The previous prime is 2571520597. The next prime is 2571520661. The reversal of 2571520655 is 5560251752.

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

It is not a de Polignac number, because 2571520655 - 2¹² = 2571516559 is a prime.

It is a super-2 number, since 2×2571520655² = 13225436958183258050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 23377406 + ... + 23377515.

It is an arithmetic number, because the mean of its divisors is an integer number (420794298).

Almost surely, 2^2571520655 is an apocalyptic number.

2571520655 is a deficient number, since it is larger than the sum of its proper divisors (794833729).

2571520655 is a wasteful number, since it uses less digits than its factorization.

2571520655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46754937.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 2571520655 is about 50710.1632318414. The cubic root of 2571520655 is about 1370.0297745141.

The spelling of 2571520655 in words is "two billion, five hundred seventy-one million, five hundred twenty thousand, six hundred fifty-five".