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25075057 = 79373823
BaseRepresentation
bin101111110100…
…1110101110001
31202011221111211
41133221311301
522404400212
62253240121
7423064060
oct137516561
952157454
1025075057
1113177297
128493041
13526c417
14348a1d7
1523049a7
hex17e9d71

25075057 has 8 divisors (see below), whose sum is σ = 28695296. Its totient is φ = 21464352.

The previous prime is 25075049. The next prime is 25075091. The reversal of 25075057 is 75057052.

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

It is not a de Polignac number, because 25075057 - 23 = 25075049 is a prime.

It is the 5008-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (25075097) by changing a digit.

It is a nontrivial repunit in base 5007.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4648 + ... + 8470.

It is an arithmetic number, because the mean of its divisors is an integer number (3586912).

Almost surely, 225075057 is an apocalyptic number.

It is an amenable number.

25075057 is a deficient number, since it is larger than the sum of its proper divisors (3620239).

25075057 is an equidigital number, since it uses as much as digits as its factorization.

25075057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767.

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 25075057 is about 5007.5000748877. The cubic root of 25075057 is about 292.6941054615.

The spelling of 25075057 in words is "twenty-five million, seventy-five thousand, fifty-seven".

Divisors: 1 7 937 3823 6559 26761 3582151 25075057