5262561240 has 128 divisors (see below), whose sum is σ = 16521062400. Its totient is φ = 1339407360.

The previous prime is 5262561223. The next prime is 5262561263. The reversal of 5262561240 is 421652625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261871 + ... + 281249.

It is an arithmetic number, because the mean of its divisors is an integer number (129070800).

Almost surely, 2^5262561240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5262561240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8260531200).

5262561240 is an abundant number, since it is smaller than the sum of its proper divisors (11258501160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5262561240 is a wasteful number, since it uses less digits than its factorization.

5262561240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19497 (or 19493 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 5262561240 is about 72543.5127354611. The cubic root of 5262561240 is about 1739.3983519047.

The spelling of 5262561240 in words is "five billion, two hundred sixty-two million, five hundred sixty-one thousand, two hundred forty".