25000770 has 64 divisors (see below), whose sum is σ = 65940480. Its totient is φ = 6038208.

The previous prime is 25000739. The next prime is 25000771. The reversal of 25000770 is 7700052.

It is not an unprimeable number, because it can be changed into a prime (25000771) 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, 12157 + ... + 14063.

It is an arithmetic number, because the mean of its divisors is an integer number (1030320).

Almost surely, 2^25000770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25000770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32970240).

25000770 is an abundant number, since it is smaller than the sum of its proper divisors (40939710).

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

25000770 is a wasteful number, since it uses less digits than its factorization.

25000770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959.

The product of its (nonzero) digits is 490, while the sum is 21.

The square root of 25000770 is about 5000.0769994071. The cubic root of 25000770 is about 292.4047757820.

The spelling of 25000770 in words is "twenty-five million, seven hundred seventy", and thus it is an aban number.