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25248497 = 411494133
BaseRepresentation
bin110000001010…
…0001011110001
31202111202102112
41200110023301
522430422442
62301055105
7424415531
oct140241361
952452375
1025248497
111328562a
128557495
135300351
1434d34c1
15233b082
hex18142f1

25248497 has 8 divisors (see below), whose sum is σ = 26044200. Its totient is φ = 24461440.

The previous prime is 25248491. The next prime is 25248533. The reversal of 25248497 is 79484252.

It can be written as a sum of positive squares in 4 ways, for example, as 7921 + 25240576 = 89^2 + 5024^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25248497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25248491) 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, 4043 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (3255525).

Almost surely, 225248497 is an apocalyptic number.

It is an amenable number.

25248497 is a deficient number, since it is larger than the sum of its proper divisors (795703).

25248497 is a wasteful number, since it uses less digits than its factorization.

25248497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323.

The product of its digits is 161280, while the sum is 41.

The square root of 25248497 is about 5024.7882542451. The cubic root of 25248497 is about 293.3673943173.

The spelling of 25248497 in words is "twenty-five million, two hundred forty-eight thousand, four hundred ninety-seven".

Divisors: 1 41 149 4133 6109 169453 615817 25248497