5261243526 has 192 divisors, whose sum is σ = 15040396800. Its totient is φ = 1287705600.

The previous prime is 5261243513. The next prime is 5261243557. The reversal of 5261243526 is 6253421625.

5261243526 is a `hidden beast` number, since 5 + 2 + 6 + 124 + 3 + 526 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6346080 + ... + 6346908.

It is an arithmetic number, because the mean of its divisors is an integer number (78335400).

Almost surely, 2^5261243526 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5261243526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7520198400).

5261243526 is an abundant number, since it is smaller than the sum of its proper divisors (9779153274).

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

5261243526 is a wasteful number, since it uses less digits than its factorization.

5261243526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1112 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 5261243526 is about 72534.4299350315. The cubic root of 5261243526 is about 1739.2531614556.

The spelling of 5261243526 in words is "five billion, two hundred sixty-one million, two hundred forty-three thousand, five hundred twenty-six".