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55344025 = 5211201251
BaseRepresentation
bin1101001100011…
…1101110011001
310212010202201201
43103013232121
5103132002100
65254114201
71241262562
oct323075631
9125122651
1055344025
1129270870
121664b961
13b609959
1474c9169
154cd336a
hex34c7b99

55344025 has 12 divisors (see below), whose sum is σ = 74865744. Its totient is φ = 40250000.

The previous prime is 55344013. The next prime is 55344041. The reversal of 55344025 is 52044355.

It is a de Polignac number, because none of the positive numbers 2k-55344025 is a prime.

It is a super-2 number, since 2×553440252 = 6125922206401250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55343984 and 55344002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100351 + ... + 100900.

It is an arithmetic number, because the mean of its divisors is an integer number (6238812).

Almost surely, 255344025 is an apocalyptic number.

55344025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55344025 is a deficient number, since it is larger than the sum of its proper divisors (19521719).

55344025 is a wasteful number, since it uses less digits than its factorization.

55344025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201272 (or 201267 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55344025 is about 7439.3564909876. The cubic root of 55344025 is about 381.0865141563.

It can be divided in two parts, 5534 and 4025, that added together give a palindrome (9559).

The spelling of 55344025 in words is "fifty-five million, three hundred forty-four thousand, twenty-five".

Divisors: 1 5 11 25 55 275 201251 1006255 2213761 5031275 11068805 55344025