25707066 has 48 divisors (see below), whose sum is σ = 65253600. Its totient is φ = 6676320.

The previous prime is 25707061. The next prime is 25707103. The reversal of 25707066 is 66070752.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (25707061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741 + ... + 7208.

It is an arithmetic number, because the mean of its divisors is an integer number (1359450).

Almost surely, 2^25707066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25707066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32626800).

25707066 is an abundant number, since it is smaller than the sum of its proper divisors (39546534).

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

25707066 is a wasteful number, since it uses less digits than its factorization.

25707066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979 (or 7972 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 25707066 is about 5070.2136049677. The cubic root of 25707066 is about 295.1328177182.

The spelling of 25707066 in words is "twenty-five million, seven hundred seven thousand, sixty-six".