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25664054 = 213987079
BaseRepresentation
bin110000111100…
…1101000110110
31210021212110112
41201321220312
523032222204
62314023022
7431066213
oct141715066
953255415
1025664054
1113539869
128717a72
135417540
1435a0b0a
1523be26e
hex1879a36

25664054 has 8 divisors (see below), whose sum is σ = 41457360. Its totient is φ = 11844936.

The previous prime is 25664029. The next prime is 25664083. The reversal of 25664054 is 45046652.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25664054.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493514 + ... + 493565.

It is an arithmetic number, because the mean of its divisors is an integer number (5182170).

Almost surely, 225664054 is an apocalyptic number.

25664054 is a deficient number, since it is larger than the sum of its proper divisors (15793306).

25664054 is a wasteful number, since it uses less digits than its factorization.

25664054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987094.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 25664054 is about 5065.9701933588. The cubic root of 25664054 is about 294.9681244885.

The spelling of 25664054 in words is "twenty-five million, six hundred sixty-four thousand, fifty-four".

Divisors: 1 2 13 26 987079 1974158 12832027 25664054