2544281061 has 64 divisors (see below), whose sum is σ = 4103970816. Its totient is φ = 1371686400.

The previous prime is 2544281057. The next prime is 2544281101. The reversal of 2544281061 is 1601824452.

It is a happy number.

It is not a de Polignac number, because 2544281061 - 2² = 2544281057 is a prime.

It is a super-3 number, since 3×2544281061³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544281021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9054241 + ... + 9054521.

It is an arithmetic number, because the mean of its divisors is an integer number (64124544).

Almost surely, 2^2544281061 is an apocalyptic number.

2544281061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2544281061 is a deficient number, since it is larger than the sum of its proper divisors (1559689755).

2544281061 is a wasteful number, since it uses less digits than its factorization.

2544281061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2544281061 is about 50440.8669731201. The cubic root of 2544281061 is about 1365.1751104361.

The spelling of 2544281061 in words is "two billion, five hundred forty-four million, two hundred eighty-one thousand, sixty-one".