25777252 has 6 divisors (see below), whose sum is σ = 45110198. Its totient is φ = 12888624.

The previous prime is 25777247. The next prime is 25777267. The reversal of 25777252 is 25277752.

It can be written as a sum of positive squares in only one way, i.e., 25664356 + 112896 = 5066^2 + 336^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222153 + ... + 3222160.

Almost surely, 2^25777252 is an apocalyptic number.

It is an amenable number.

25777252 is a deficient number, since it is larger than the sum of its proper divisors (19332946).

25777252 is a wasteful number, since it uses less digits than its factorization.

25777252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444317 (or 6444315 counting only the distinct ones).

The product of its digits is 68600, while the sum is 37.

The square root of 25777252 is about 5077.1302918086. The cubic root of 25777252 is about 295.4011663639.

Subtracting from 25777252 its reverse (25277752), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 25777252 in words is "twenty-five million, seven hundred seventy-seven thousand, two hundred fifty-two".