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25164061 = 1367167173
BaseRepresentation
bin101111111111…
…1100100011101
31202100110121021
41133333210131
522420222221
62255204141
7423614416
oct137774435
952313537
1025164061
111322814a
128516651
1352a0aa0
1434b080d
152321041
hex17ff91d

25164061 has 16 divisors (see below), whose sum is σ = 27828864. Its totient is φ = 22613184.

The previous prime is 25164053. The next prime is 25164079. The reversal of 25164061 is 16046152.

It is a cyclic number.

It is not a de Polignac number, because 25164061 - 23 = 25164053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25164011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145371 + ... + 145543.

It is an arithmetic number, because the mean of its divisors is an integer number (1739304).

Almost surely, 225164061 is an apocalyptic number.

It is an amenable number.

25164061 is a deficient number, since it is larger than the sum of its proper divisors (2664803).

25164061 is a wasteful number, since it uses less digits than its factorization.

25164061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 25164061 is about 5016.3792719451. The cubic root of 25164061 is about 293.0400027698.

The spelling of 25164061 in words is "twenty-five million, one hundred sixty-four thousand, sixty-one".

Divisors: 1 13 67 167 173 871 2171 2249 11189 11591 28891 145457 150683 375583 1935697 25164061