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25275485 = 55778761
BaseRepresentation
bin110000001101…
…0110001011101
31202120010110002
41200122301131
522432303420
62301424045
7424560314
oct140326135
952503402
1025275485
11132a3934
12856b025
13530c711
1434dd27b
152344075
hex181ac5d

25275485 has 8 divisors (see below), whose sum is σ = 30386616. Its totient is φ = 20183040.

The previous prime is 25275469. The next prime is 25275487. The reversal of 25275485 is 58457252.

It can be written as a sum of positive squares in 4 ways, for example, as 4280761 + 20994724 = 2069^2 + 4582^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25275485 - 24 = 25275469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25275487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496 + ... + 7265.

It is an arithmetic number, because the mean of its divisors is an integer number (3798327).

Almost surely, 225275485 is an apocalyptic number.

It is an amenable number.

25275485 is a deficient number, since it is larger than the sum of its proper divisors (5111131).

25275485 is an equidigital number, since it uses as much as digits as its factorization.

25275485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9343.

The product of its digits is 112000, while the sum is 38.

The square root of 25275485 is about 5027.4730232991. The cubic root of 25275485 is about 293.4718834407.

The spelling of 25275485 in words is "twenty-five million, two hundred seventy-five thousand, four hundred eighty-five".

Divisors: 1 5 577 2885 8761 43805 5055097 25275485