25700070 has 64 divisors (see below), whose sum is σ = 68760576. Its totient is φ = 6094080.

The previous prime is 25700069. The next prime is 25700113. The reversal of 25700070 is 7000752.

It is a super-3 number, since 3×25700070³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14682 + ... + 16338.

It is an arithmetic number, because the mean of its divisors is an integer number (1074384).

Almost surely, 2^25700070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25700070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34380288).

25700070 is an abundant number, since it is smaller than the sum of its proper divisors (43060506).

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

25700070 is a wasteful number, since it uses less digits than its factorization.

25700070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725.

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

The square root of 25700070 is about 5069.5236462611. The cubic root of 25700070 is about 295.1060425049.

The spelling of 25700070 in words is "twenty-five million, seven hundred thousand, seventy".