25720276 has 6 divisors (see below), whose sum is σ = 45010490. Its totient is φ = 12860136.

The previous prime is 25720273. The next prime is 25720307. The reversal of 25720276 is 67202752.

It can be written as a sum of positive squares in only one way, i.e., 25704900 + 15376 = 5070^2 + 124^2 .

It is a super-3 number, since 3×25720276³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25720271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215031 + ... + 3215038.

Almost surely, 2^25720276 is an apocalyptic number.

It is an amenable number.

25720276 is a deficient number, since it is larger than the sum of its proper divisors (19290214).

25720276 is a wasteful number, since it uses less digits than its factorization.

25720276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430073 (or 6430071 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 25720276 is about 5071.5161441131. The cubic root of 25720276 is about 295.1833620174.

The spelling of 25720276 in words is "twenty-five million, seven hundred twenty thousand, two hundred seventy-six".