25715055 has 16 divisors (see below), whose sum is σ = 41303520. Its totient is φ = 13661568.

The previous prime is 25715051. The next prime is 25715119. The reversal of 25715055 is 55051752.

It is not a de Polignac number, because 25715055 - 2² = 25715051 is a prime.

It is a super-2 number, since 2×25715055² = 1322528107306050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25715051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (2581470).

Almost surely, 2^25715055 is an apocalyptic number.

25715055 is a deficient number, since it is larger than the sum of its proper divisors (15588465).

25715055 is a wasteful number, since it uses less digits than its factorization.

25715055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6650.

The product of its (nonzero) digits is 8750, while the sum is 30.

The square root of 25715055 is about 5071.0013803982. The cubic root of 25715055 is about 295.1633874180.

It can be divided in two parts, 2571 and 5055, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 25715055 in words is "twenty-five million, seven hundred fifteen thousand, fifty-five".