25070700 has 72 divisors (see below), whose sum is σ = 73082128. Its totient is φ = 6635520.

The previous prime is 25070659. The next prime is 25070707. The reversal of 25070700 is 707052.

It is not an unprimeable number, because it can be changed into a prime (25070707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57684 + ... + 58116.

Almost surely, 2^25070700 is an apocalyptic number.

25070700 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 25070700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36541064).

25070700 is an abundant number, since it is smaller than the sum of its proper divisors (48011428).

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

25070700 is a wasteful number, since it uses less digits than its factorization.

25070700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 636 counting only the distinct ones).

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

The square root of 25070700 is about 5007.0650085654. The cubic root of 25070700 is about 292.6771518000.

Adding to 25070700 its reverse (707052), we get a palindrome (25777752).

The spelling of 25070700 in words is "twenty-five million, seventy thousand, seven hundred".