2562542549 has 8 divisors (see below), whose sum is σ = 3100891968. Its totient is φ = 2067261120.

The previous prime is 2562542531. The next prime is 2562542551. The reversal of 2562542549 is 9452452652.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2562542549 - 2¹⁶ = 2562477013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2562542519) 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, 10766867 + ... + 10767104.

It is an arithmetic number, because the mean of its divisors is an integer number (387611496).

Almost surely, 2^2562542549 is an apocalyptic number.

It is an amenable number.

2562542549 is a deficient number, since it is larger than the sum of its proper divisors (538349419).

2562542549 is a wasteful number, since it uses less digits than its factorization.

2562542549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21533995.

The product of its digits is 864000, while the sum is 44.

The square root of 2562542549 is about 50621.5620956130. The cubic root of 2562542549 is about 1368.4334926615.

The spelling of 2562542549 in words is "two billion, five hundred sixty-two million, five hundred forty-two thousand, five hundred forty-nine".