2553021571 has 4 divisors (see below), whose sum is σ = 2622022192. Its totient is φ = 2484020952.

The previous prime is 2553021547. The next prime is 2553021599. The reversal of 2553021571 is 1751203552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2553021571 - 2⁵ = 2553021539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2553021271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34500255 + ... + 34500328.

It is an arithmetic number, because the mean of its divisors is an integer number (655505548).

Almost surely, 2^2553021571 is an apocalyptic number.

2553021571 is a deficient number, since it is larger than the sum of its proper divisors (69000621).

2553021571 is an equidigital number, since it uses as much as digits as its factorization.

2553021571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69000620.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 2553021571 is about 50527.4338453874. The cubic root of 2553021571 is about 1366.7366109817.

The spelling of 2553021571 in words is "two billion, five hundred fifty-three million, twenty-one thousand, five hundred seventy-one".