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55616070549 = 3131511943781
BaseRepresentation
bin110011110010111110…
…011110001110010101
312022112222110010002210
4303302332132032111
51402400203224144
641314421224033
74006134541164
oct636276361625
9168488403083
1055616070549
112164a904a76
12a941862019
135324432bb0
14299855d3db
1516a7940ab9
hexcf2f9e395

55616070549 has 16 divisors (see below), whose sum is σ = 79911909504. Its totient is φ = 34202587200.

The previous prime is 55616070509. The next prime is 55616070553. The reversal of 55616070549 is 94507061655.

It is not a de Polignac number, because 55616070549 - 27 = 55616070421 is a prime.

It is a super-2 number, since 2×556160705492 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55616070498 and 55616070507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55616070509) 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, 412962 + ... + 530819.

It is an arithmetic number, because the mean of its divisors is an integer number (4994494344).

Almost surely, 255616070549 is an apocalyptic number.

It is an amenable number.

55616070549 is a deficient number, since it is larger than the sum of its proper divisors (24295838955).

55616070549 is a wasteful number, since it uses less digits than its factorization.

55616070549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945308.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 55616070549 in words is "fifty-five billion, six hundred sixteen million, seventy thousand, five hundred forty-nine".

Divisors: 1 3 13 39 1511 4533 19643 58929 943781 2831343 12269153 36807459 1426053091 4278159273 18538690183 55616070549