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25142475 = 3522811193
BaseRepresentation
bin101111111101…
…0010011001011
31202022100222210
41133322103023
522414024400
62254520203
7423464451
oct137722313
952270883
1025142475
1113212a06
128506063
135294007
1434a69d1
152319950
hex17fa4cb

25142475 has 24 divisors (see below), whose sum is σ = 41751792. Its totient is φ = 13350400.

The previous prime is 25142413. The next prime is 25142477. The reversal of 25142475 is 57424152.

It is not a de Polignac number, because 25142475 - 27 = 25142347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25142477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20479 + ... + 21671.

It is an arithmetic number, because the mean of its divisors is an integer number (1739658).

Almost surely, 225142475 is an apocalyptic number.

25142475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25142475 is a deficient number, since it is larger than the sum of its proper divisors (16609317).

25142475 is a wasteful number, since it uses less digits than its factorization.

25142475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1482 counting only the distinct ones).

The product of its digits is 11200, while the sum is 30.

The square root of 25142475 is about 5014.2272585115. The cubic root of 25142475 is about 292.9561878525.

The spelling of 25142475 in words is "twenty-five million, one hundred forty-two thousand, four hundred seventy-five".

Divisors: 1 3 5 15 25 75 281 843 1193 1405 3579 4215 5965 7025 17895 21075 29825 89475 335233 1005699 1676165 5028495 8380825 25142475