25488477 has 36 divisors (see below), whose sum is σ = 44326620. Its totient is φ = 14055552.

The previous prime is 25488469. The next prime is 25488487. The reversal of 25488477 is 77488452.

It can be written as a sum of positive squares in 2 ways, for example, as 16088121 + 9400356 = 4011^2 + 3066^2 .

It is not a de Polignac number, because 25488477 - 2³ = 25488469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25488467) 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 35 ways as a sum of consecutive naturals, for example, 11793 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (1231295).

Almost surely, 2^25488477 is an apocalyptic number.

It is an amenable number.

25488477 is a deficient number, since it is larger than the sum of its proper divisors (18838143).

25488477 is a wasteful number, since it uses less digits than its factorization.

25488477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042 (or 2032 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 25488477 is about 5048.6113932447. The cubic root of 25488477 is about 294.2939237416.

It can be divided in two parts, 2548 and 8477, that added together give a square (11025 = 105²).

The spelling of 25488477 in words is "twenty-five million, four hundred eighty-eight thousand, four hundred seventy-seven".