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25082040245 = 544911172401
BaseRepresentation
bin10111010111000000…
…011000111110110101
32101202000021122212112
4113113000120332311
5402332000241440
615304511100405
71545361552523
oct272700307665
971660248775
1025082040245
11a701181089
124a3bb11705
13249952c442
1412dd221313
159bbeca965
hex5d7018fb5

25082040245 has 8 divisors (see below), whose sum is σ = 30165485400. Its totient is φ = 20020940800.

The previous prime is 25082040241. The next prime is 25082040271. The reversal of 25082040245 is 54204028052.

It can be written as a sum of positive squares in 4 ways, for example, as 10493748721 + 14588291524 = 102439^2 + 120782^2 .

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

It is not a de Polignac number, because 25082040245 - 22 = 25082040241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25082040241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5583956 + ... + 5588445.

It is an arithmetic number, because the mean of its divisors is an integer number (3770685675).

Almost surely, 225082040245 is an apocalyptic number.

It is an amenable number.

25082040245 is a deficient number, since it is larger than the sum of its proper divisors (5083445155).

25082040245 is a wasteful number, since it uses less digits than its factorization.

25082040245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11172855.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 25082040245 its reverse (54204028052), we get a palindrome (79286068297).

The spelling of 25082040245 in words is "twenty-five billion, eighty-two million, forty thousand, two hundred forty-five".

Divisors: 1 5 449 2245 11172401 55862005 5016408049 25082040245