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25051055 = 525119961
BaseRepresentation
bin101111110001…
…1111110101111
31202010201120212
41133203332233
522403113210
62252533035
7422634101
oct137437657
952121525
1025051055
1113160257
12848117b
135261513
143481571
1522ec805
hex17e3faf

25051055 has 8 divisors (see below), whose sum is σ = 30182544. Its totient is φ = 19960000.

The previous prime is 25051043. The next prime is 25051067. The reversal of 25051055 is 55015052.

It is an interprime number because it is at equal distance from previous prime (25051043) and next prime (25051067).

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

It is not a de Polignac number, because 25051055 - 28 = 25050799 is a prime.

It is a super-2 number, since 2×250510552 = 1255110713226050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25051055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8726 + ... + 11235.

It is an arithmetic number, because the mean of its divisors is an integer number (3772818).

Almost surely, 225051055 is an apocalyptic number.

25051055 is a deficient number, since it is larger than the sum of its proper divisors (5131489).

25051055 is a wasteful number, since it uses less digits than its factorization.

25051055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20217.

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 25051055 is about 5005.1028960452. The cubic root of 25051055 is about 292.6006861106.

The spelling of 25051055 in words is "twenty-five million, fifty-one thousand, fifty-five".

Divisors: 1 5 251 1255 19961 99805 5010211 25051055