25778060 has 96 divisors (see below), whose sum is σ = 71124480. Its totient is φ = 7603200.

The previous prime is 25778059. The next prime is 25778063. The reversal of 25778060 is 6087752.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 25778060.

It is not an unprimeable number, because it can be changed into a prime (25778063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28820 + ... + 29700.

It is an arithmetic number, because the mean of its divisors is an integer number (740880).

Almost surely, 2^25778060 is an apocalyptic number.

25778060 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 25778060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35562240).

25778060 is an abundant number, since it is smaller than the sum of its proper divisors (45346420).

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

25778060 is a wasteful number, since it uses less digits than its factorization.

25778060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 25778060 is about 5077.2098636948. The cubic root of 25778060 is about 295.4042528275.

The spelling of 25778060 in words is "twenty-five million, seven hundred seventy-eight thousand, sixty".