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25259125 = 53397509
BaseRepresentation
bin110000001011…
…0110001110101
31202112022000011
41200112301311
522431243000
62301220221
7424461523
oct140266165
952468004
1025259125
1113292611
128561671
135305138
1434d7313
15233e2ba
hex1816c75

25259125 has 16 divisors (see below), whose sum is σ = 31664880. Its totient is φ = 20116800.

The previous prime is 25259119. The next prime is 25259131. The reversal of 25259125 is 52195252.

It is an interprime number because it is at equal distance from previous prime (25259119) and next prime (25259131).

It can be written as a sum of positive squares in 8 ways, for example, as 2961841 + 22297284 = 1721^2 + 4722^2 .

It is not a de Polignac number, because 25259125 - 27 = 25258997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49371 + ... + 49879.

It is an arithmetic number, because the mean of its divisors is an integer number (1979055).

Almost surely, 225259125 is an apocalyptic number.

25259125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25259125 is a deficient number, since it is larger than the sum of its proper divisors (6405755).

25259125 is an equidigital number, since it uses as much as digits as its factorization.

25259125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 911 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 25259125 is about 5025.8456999793. The cubic root of 25259125 is about 293.4085515036.

The spelling of 25259125 in words is "twenty-five million, two hundred fifty-nine thousand, one hundred twenty-five".

Divisors: 1 5 25 125 397 509 1985 2545 9925 12725 49625 63625 202073 1010365 5051825 25259125