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55275005252525 = 5210309321446657
BaseRepresentation
bin11001001000101101101110…
…00011011001001110101101
321020201020110011011200121012
430210112313003121032231
524221111202321040100
6313320553054515005
714433326105312012
oct1444266703311655
9236636404150535
1055275005252525
1116680aa84a3153
1262487bb505a65
1324ac5451cb326
14d91478715709
1565cc6a559135
hex3245b70d93ad

55275005252525 has 12 divisors (see below), whose sum is σ = 68541674555412. Its totient is φ = 44219573207040.

The previous prime is 55275005252471. The next prime is 55275005252539. The reversal of 55275005252525 is 52525250057255.

It can be written as a sum of positive squares in 6 ways, for example, as 7338740598121 + 47936264654404 = 2709011^2 + 6923602^2 .

It is not a de Polignac number, because 55275005252525 - 220 = 55275004203949 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 8146004 + ... + 13300653.

It is an arithmetic number, because the mean of its divisors is an integer number (5711806212951).

Almost surely, 255275005252525 is an apocalyptic number.

It is an amenable number.

55275005252525 is a deficient number, since it is larger than the sum of its proper divisors (13266669302887).

55275005252525 is a wasteful number, since it uses less digits than its factorization.

55275005252525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21549760 (or 21549755 counting only the distinct ones).

The product of its (nonzero) digits is 8750000, while the sum is 50.

The spelling of 55275005252525 in words is "fifty-five trillion, two hundred seventy-five billion, five million, two hundred fifty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 103093 515465 2577325 21446657 107233285 536166425 2211000210101 11055001050505 55275005252525