25070000 has 100 divisors (see below), whose sum is σ = 63917040. Its totient is φ = 9504000.

The previous prime is 25069991. The next prime is 25070009. The reversal of 25070000 is 7052.

It is an interprime number because it is at equal distance from previous prime (25069991) and next prime (25070009).

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (25070009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 229946 + ... + 230054.

Almost surely, 2^25070000 is an apocalyptic number.

25070000 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 25070000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31958520).

25070000 is an abundant number, since it is smaller than the sum of its proper divisors (38847040).

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

25070000 is a wasteful number, since it uses less digits than its factorization.

25070000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 25070000 is about 5006.9951068480. The cubic root of 25070000 is about 292.6744278246.

Adding to 25070000 its reverse (7052), we get a palindrome (25077052).

The spelling of 25070000 in words is "twenty-five million, seventy thousand".