26252478 has 64 divisors (see below), whose sum is σ = 67200000. Its totient is φ = 7441632.

The previous prime is 26252431. The next prime is 26252521. The reversal of 26252478 is 87425262.

26252478 is a `hidden beast` number, since 2 + 62 + 524 + 78 = 666.

It is a super-2 number, since 2×26252478² = 1378385202280968, which contains 22 as substring.

Its product of digits (53760) is a multiple of the sum of its prime divisors (560).

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, 75048 + ... + 75396.

It is an arithmetic number, because the mean of its divisors is an integer number (1050000).

Almost surely, 2^26252478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26252478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33600000).

26252478 is an abundant number, since it is smaller than the sum of its proper divisors (40947522).

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

26252478 is a wasteful number, since it uses less digits than its factorization.

26252478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 560 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 26252478 is about 5123.7172053110. The cubic root of 26252478 is about 297.2054491144.

The spelling of 26252478 in words is "twenty-six million, two hundred fifty-two thousand, four hundred seventy-eight".