5261540444 has 24 divisors (see below), whose sum is σ = 9789323040. Its totient is φ = 2468907584.

The previous prime is 5261540437. The next prime is 5261540483. The reversal of 5261540444 is 4440451625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534659 + ... + 544410.

It is an arithmetic number, because the mean of its divisors is an integer number (407888460).

Almost surely, 2^5261540444 is an apocalyptic number.

It is an amenable number.

5261540444 is a deficient number, since it is larger than the sum of its proper divisors (4527782596).

5261540444 is a wasteful number, since it uses less digits than its factorization.

5261540444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079149 (or 1079147 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 5261540444 is about 72536.4766445131. The cubic root of 5261540444 is about 1739.2858790601.

The spelling of 5261540444 in words is "five billion, two hundred sixty-one million, five hundred forty thousand, four hundred forty-four".