25064340 has 96 divisors (see below), whose sum is σ = 81285120. Its totient is φ = 5652096.

The previous prime is 25064327. The next prime is 25064353. The reversal of 25064340 is 4346052.

It is an interprime number because it is at equal distance from previous prime (25064327) and next prime (25064353).

It is a super-2 number, since 2×25064340² = 1256442279271200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25064340.

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, 34501 + ... + 35219.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^25064340 is an apocalyptic number.

25064340 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 25064340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40642560).

25064340 is an abundant number, since it is smaller than the sum of its proper divisors (56220780).

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

25064340 is a wasteful number, since it uses less digits than its factorization.

25064340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 25064340 is about 5006.4298656827. The cubic root of 25064340 is about 292.6524006747.

The spelling of 25064340 in words is "twenty-five million, sixty-four thousand, three hundred forty".