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25251253 = 173227643
BaseRepresentation
bin110000001010…
…0110110110101
31202111220012121
41200110312311
522431020003
62301115541
7424426546
oct140246665
952456177
1025251253
1113287705
128558bb1
135301691
1434d44cd
15233bcbd
hex1814db5

25251253 has 8 divisors (see below), whose sum is σ = 25548768. Its totient is φ = 24955824.

The previous prime is 25251227. The next prime is 25251287. The reversal of 25251253 is 35215252.

It is a happy number.

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-25251253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25251223) 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, 38950 + ... + 39592.

It is an arithmetic number, because the mean of its divisors is an integer number (3193596).

Almost surely, 225251253 is an apocalyptic number.

It is an amenable number.

25251253 is a deficient number, since it is larger than the sum of its proper divisors (297515).

25251253 is a wasteful number, since it uses less digits than its factorization.

25251253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043.

The product of its digits is 3000, while the sum is 25.

The square root of 25251253 is about 5025.0624871737. The cubic root of 25251253 is about 293.3780681028.

The spelling of 25251253 in words is "twenty-five million, two hundred fifty-one thousand, two hundred fifty-three".

Divisors: 1 173 227 643 39271 111239 145961 25251253