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25142055 = 353789509
BaseRepresentation
bin101111111101…
…0001100100111
31202022100102020
41133322030213
522414021210
62254514223
7423463311
oct137721447
952270366
1025142055
1113212664
128505973
135293a73
1434a67b1
152319770
hex17fa327

25142055 has 32 divisors (see below), whose sum is σ = 41860800. Its totient is φ = 12874752.

The previous prime is 25142041. The next prime is 25142077. The reversal of 25142055 is 55024152.

It is a happy number.

It is not a de Polignac number, because 25142055 - 211 = 25140007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49141 + ... + 49649.

It is an arithmetic number, because the mean of its divisors is an integer number (1308150).

Almost surely, 225142055 is an apocalyptic number.

25142055 is a deficient number, since it is larger than the sum of its proper divisors (16718745).

25142055 is a wasteful number, since it uses less digits than its factorization.

25142055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 25142055 is about 5014.1853775065. The cubic root of 25142055 is about 292.9545565853.

The spelling of 25142055 in words is "twenty-five million, one hundred forty-two thousand, fifty-five".

Divisors: 1 3 5 15 37 89 111 185 267 445 509 555 1335 1527 2545 3293 7635 9879 16465 18833 45301 49395 56499 94165 135903 226505 282495 679515 1676137 5028411 8380685 25142055