25278052 has 6 divisors (see below), whose sum is σ = 44236598. Its totient is φ = 12639024.

The previous prime is 25278049. The next prime is 25278079. The reversal of 25278052 is 25087252.

It can be written as a sum of positive squares in only one way, i.e., 21381376 + 3896676 = 4624^2 + 1974^2 .

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 as a sum of consecutive naturals, namely, 3159753 + ... + 3159760.

Almost surely, 2^25278052 is an apocalyptic number.

It is an amenable number.

25278052 is a deficient number, since it is larger than the sum of its proper divisors (18958546).

25278052 is a wasteful number, since it uses less digits than its factorization.

25278052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6319517 (or 6319515 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 25278052 is about 5027.7283140599. The cubic root of 25278052 is about 293.4818181900.

The spelling of 25278052 in words is "twenty-five million, two hundred seventy-eight thousand, fifty-two".