2542047553 has 4 divisors (see below), whose sum is σ = 2691579780. Its totient is φ = 2392515328.

The previous prime is 2542047539. The next prime is 2542047619. The reversal of 2542047553 is 3557402452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1866931264 + 675116289 = 43208^2 + 25983^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542047553 - 2²¹ = 2539950401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542047853) 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, 74766088 + ... + 74766121.

It is an arithmetic number, because the mean of its divisors is an integer number (672894945).

Almost surely, 2^2542047553 is an apocalyptic number.

It is an amenable number.

2542047553 is a deficient number, since it is larger than the sum of its proper divisors (149532227).

2542047553 is a wasteful number, since it uses less digits than its factorization.

2542047553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149532226.

The product of its (nonzero) digits is 168000, while the sum is 37.

The square root of 2542047553 is about 50418.7222468003. The cubic root of 2542047553 is about 1364.7755185510.

The spelling of 2542047553 in words is "two billion, five hundred forty-two million, forty-seven thousand, five hundred fifty-three".