25505701 has 8 divisors (see below), whose sum is σ = 27670104. Its totient is φ = 23370240.

The previous prime is 25505699. The next prime is 25505713. The reversal of 25505701 is 10750552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 245025 + 25260676 = 495^2 + 5026^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25505701 - 2¹ = 25505699 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25505101) 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 7 ways as a sum of consecutive naturals, for example, 5380 + ... + 8941.

It is an arithmetic number, because the mean of its divisors is an integer number (3458763).

Almost surely, 2^25505701 is an apocalyptic number.

It is an amenable number.

25505701 is a deficient number, since it is larger than the sum of its proper divisors (2164403).

25505701 is a wasteful number, since it uses less digits than its factorization.

25505701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14471.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 25505701 is about 5050.3169207486. The cubic root of 25505701 is about 294.3601991437.

The spelling of 25505701 in words is "twenty-five million, five hundred five thousand, seven hundred one".