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55581352 = 236947669
BaseRepresentation
bin1101010000000…
…1101010101000
310212120211021121
43110001222220
5103212100402
65303145024
71243301521
oct324015250
9125524247
1055581352
1129413102
1216745174
13b690998
14754b848
154d2d837
hex3501aa8

55581352 has 8 divisors (see below), whose sum is σ = 104215050. Its totient is φ = 27790672.

The previous prime is 55581349. The next prime is 55581467. The reversal of 55581352 is 25318555.

It can be written as a sum of positive squares in only one way, i.e., 54671236 + 910116 = 7394^2 + 954^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3473827 + ... + 3473842.

Almost surely, 255581352 is an apocalyptic number.

It is an amenable number.

55581352 is a deficient number, since it is larger than the sum of its proper divisors (48633698).

55581352 is a wasteful number, since it uses less digits than its factorization.

55581352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947675 (or 6947671 counting only the distinct ones).

The product of its digits is 30000, while the sum is 34.

The square root of 55581352 is about 7455.2902022658. The cubic root of 55581352 is about 381.6304641604.

The spelling of 55581352 in words is "fifty-five million, five hundred eighty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 8 6947669 13895338 27790676 55581352