26312550 has 96 divisors (see below), whose sum is σ = 73281024. Its totient is φ = 6192000.

The previous prime is 26312543. The next prime is 26312557. The reversal of 26312550 is 5521362.

It is an interprime number because it is at equal distance from previous prime (26312543) and next prime (26312557).

It is a self number, because there is not a number n which added to its sum of digits gives 26312550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26312557) 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, 60835 + ... + 61265.

It is an arithmetic number, because the mean of its divisors is an integer number (763344).

Almost surely, 2^26312550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26312550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36640512).

26312550 is an abundant number, since it is smaller than the sum of its proper divisors (46968474).

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

26312550 is a wasteful number, since it uses less digits than its factorization.

26312550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 26312550 is about 5129.5760058703. The cubic root of 26312550 is about 297.4319690027.

It can be divided in two parts, 263125 and 50, that added together give a triangular number (263175 = T₇₂₅).

The spelling of 26312550 in words is "twenty-six million, three hundred twelve thousand, five hundred fifty".