65025408 has 128 divisors (see below), whose sum is σ = 209157120. Its totient is φ = 17473536.

The previous prime is 65025403. The next prime is 65025431. The reversal of 65025408 is 80452056.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65025403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44985 + ... + 46407.

It is an arithmetic number, because the mean of its divisors is an integer number (1634040).

Almost surely, 2^65025408 is an apocalyptic number.

65025408 is a gapful number since it is divisible by the number (68) 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 65025408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104578560).

65025408 is an abundant number, since it is smaller than the sum of its proper divisors (144131712).

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

65025408 is a wasteful number, since it uses less digits than its factorization.

65025408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 65025408 is about 8063.8333316110. The cubic root of 65025408 is about 402.1249580599.

The spelling of 65025408 in words is "sixty-five million, twenty-five thousand, four hundred eight".