25142125 has 16 divisors (see below), whose sum is σ = 31567536. Its totient is φ = 19992000.

The previous prime is 25142107. The next prime is 25142141. The reversal of 25142125 is 52124152.

It can be written as a sum of positive squares in 8 ways, for example, as 1454436 + 23687689 = 1206^2 + 4867^2 .

It is not a de Polignac number, because 25142125 - 2⁵ = 25142093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25142096 and 25142105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24115 + ... + 25135.

It is an arithmetic number, because the mean of its divisors is an integer number (1972971).

Almost surely, 2^25142125 is an apocalyptic number.

25142125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25142125 is a deficient number, since it is larger than the sum of its proper divisors (6425411).

25142125 is a wasteful number, since it uses less digits than its factorization.

25142125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1223 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 25142125 is about 5014.1923576983. The cubic root of 25142125 is about 292.9548284644.

Adding to 25142125 its reverse (52124152), we get a palindrome (77266277).

The spelling of 25142125 in words is "twenty-five million, one hundred forty-two thousand, one hundred twenty-five".