2547135553 has 4 divisors (see below), whose sum is σ = 2629301248. Its totient is φ = 2464969860.

The previous prime is 2547135541. The next prime is 2547135697. The reversal of 2547135553 is 3555317452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2547135553 - 2¹³ = 2547127361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2547135853) 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, 41082801 + ... + 41082862.

It is an arithmetic number, because the mean of its divisors is an integer number (657325312).

Almost surely, 2^2547135553 is an apocalyptic number.

It is an amenable number.

2547135553 is a deficient number, since it is larger than the sum of its proper divisors (82165695).

2547135553 is an equidigital number, since it uses as much as digits as its factorization.

2547135553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82165694.

The product of its digits is 315000, while the sum is 40.

The square root of 2547135553 is about 50469.1544708250. The cubic root of 2547135553 is about 1365.6854608926.

The spelling of 2547135553 in words is "two billion, five hundred forty-seven million, one hundred thirty-five thousand, five hundred fifty-three".