26250547540 has 144 divisors (see below), whose sum is σ = 65227498560. Its totient is φ = 8847014400.

The previous prime is 26250547523. The next prime is 26250547541. The reversal of 26250547540 is 4574505262.

It is a super-2 number, since 2×26250547540² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26250547493 and 26250547502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26250547541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14574640 + ... + 14576440.

It is an arithmetic number, because the mean of its divisors is an integer number (452968740).

Almost surely, 2^26250547540 is an apocalyptic number.

26250547540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26250547540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32613749280).

26250547540 is an abundant number, since it is smaller than the sum of its proper divisors (38976951020).

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

26250547540 is a wasteful number, since it uses less digits than its factorization.

26250547540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2061 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 26250547540 in words is "twenty-six billion, two hundred fifty million, five hundred forty-seven thousand, five hundred forty".