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25242135 = 351682809
BaseRepresentation
bin110000001001…
…0101000010111
31202111102200220
41200102220113
522430222020
62301005423
7424361142
oct140225027
952442626
1025242135
1113280876
128553873
1352ca499
1434d1059
152339240
hex1812a17

25242135 has 8 divisors (see below), whose sum is σ = 40387440. Its totient is φ = 13462464.

The previous prime is 25242131. The next prime is 25242137. The reversal of 25242135 is 53124252.

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

It is not a de Polignac number, because 25242135 - 22 = 25242131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25242131) 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, 841390 + ... + 841419.

It is an arithmetic number, because the mean of its divisors is an integer number (5048430).

Almost surely, 225242135 is an apocalyptic number.

25242135 is a deficient number, since it is larger than the sum of its proper divisors (15145305).

25242135 is a wasteful number, since it uses less digits than its factorization.

25242135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682817.

The product of its digits is 2400, while the sum is 24.

The square root of 25242135 is about 5024.1551528590. The cubic root of 25242135 is about 293.3427517924.

Adding to 25242135 its reverse (53124252), we get a palindrome (78366387).

The spelling of 25242135 in words is "twenty-five million, two hundred forty-two thousand, one hundred thirty-five".

Divisors: 1 3 5 15 1682809 5048427 8414045 25242135