26516540 has 24 divisors (see below), whose sum is σ = 56240352. Its totient is φ = 10500800.

The previous prime is 26516521. The next prime is 26516543. The reversal of 26516540 is 4561562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26516543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4544 + ... + 8583.

It is an arithmetic number, because the mean of its divisors is an integer number (2343348).

Almost surely, 2^26516540 is an apocalyptic number.

26516540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26516540 is an abundant number, since it is smaller than the sum of its proper divisors (29723812).

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

26516540 is a wasteful number, since it uses less digits than its factorization.

26516540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13237 (or 13235 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 26516540 is about 5149.4213267124. The cubic root of 26516540 is about 298.1986123998.

The spelling of 26516540 in words is "twenty-six million, five hundred sixteen thousand, five hundred forty".