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55515125600030 = 256191008402623
BaseRepresentation
bin11001001111101100111110…
…10101110100111100011110
321021120012020112222012100002
430213312133111310330132
524234024434123200110
6314023144023134302
714456556364506125
oct1447663725647436
9237505215865302
1055515125600030
1116763918141238
1262872532a4392
1324c90914b8ba5
14d9cd36d70abc
15664120d38aa5
hex327d9f574f1e

55515125600030 has 16 divisors (see below), whose sum is σ = 101565377328384. Its totient is φ = 21842016629280.

The previous prime is 55515125600017. The next prime is 55515125600057. The reversal of 55515125600030 is 3000652151555.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45504200702 + ... + 45504201921.

It is an arithmetic number, because the mean of its divisors is an integer number (6347836083024).

Almost surely, 255515125600030 is an apocalyptic number.

55515125600030 is a deficient number, since it is larger than the sum of its proper divisors (46050251728354).

55515125600030 is a wasteful number, since it uses less digits than its factorization.

55515125600030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91008402691.

The product of its (nonzero) digits is 112500, while the sum is 38.

Adding to 55515125600030 its reverse (3000652151555), we get a palindrome (58515777751585).

The spelling of 55515125600030 in words is "fifty-five trillion, five hundred fifteen billion, one hundred twenty-five million, six hundred thousand, thirty".

Divisors: 1 2 5 10 61 122 305 610 91008402623 182016805246 455042013115 910084026230 5551512560003 11103025120006 27757562800015 55515125600030