2053565553 has 8 divisors (see below), whose sum is σ = 2948709568. Its totient is φ = 1263732624.

The previous prime is 2053565551. The next prime is 2053565573. The reversal of 2053565553 is 3555653502.

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

It is not a de Polignac number, because 2053565553 - 2¹ = 2053565551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 52655527 = 2053565553 / (2 + 0 + 5 + 3 + 5 + 6 + 5 + 5 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2053565551) 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, 26327725 + ... + 26327802.

It is an arithmetic number, because the mean of its divisors is an integer number (368588696).

Almost surely, 2^2053565553 is an apocalyptic number.

It is an amenable number.

2053565553 is a deficient number, since it is larger than the sum of its proper divisors (895144015).

2053565553 is a wasteful number, since it uses less digits than its factorization.

2053565553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52655543.

The product of its (nonzero) digits is 337500, while the sum is 39.

The square root of 2053565553 is about 45316.2835303161. The cubic root of 2053565553 is about 1271.0701610747.

The spelling of 2053565553 in words is "two billion, fifty-three million, five hundred sixty-five thousand, five hundred fifty-three".