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55532800525 = 52171968310069
BaseRepresentation
bin110011101110000000…
…110100101000001101
312022100011202120002211
4303232000310220031
51402212344104100
641302244350421
74004104005346
oct635600645015
9168304676084
1055532800525
11216078aaa74
12a9199a5411
1353100c92a7
14298b4850cd
1516a04931ba
hexcee034a0d

55532800525 has 48 divisors (see below), whose sum is σ = 76868740800. Its totient is φ = 39550325760.

The previous prime is 55532800469. The next prime is 55532800529. The reversal of 55532800525 is 52500823555.

It is not a de Polignac number, because 55532800525 - 29 = 55532800013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55532800529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5510191 + ... + 5520259.

It is an arithmetic number, because the mean of its divisors is an integer number (1601432100).

Almost surely, 255532800525 is an apocalyptic number.

It is an amenable number.

55532800525 is a deficient number, since it is larger than the sum of its proper divisors (21335940275).

55532800525 is a wasteful number, since it uses less digits than its factorization.

55532800525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10798 (or 10793 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 55532800525 in words is "fifty-five billion, five hundred thirty-two million, eight hundred thousand, five hundred twenty-five".

Divisors: 1 5 17 19 25 85 95 323 425 475 683 1615 3415 8075 10069 11611 12977 17075 50345 58055 64885 171173 191311 220609 251725 290275 324425 855865 956555 1103045 3252287 4279325 4782775 5515225 6877127 16261435 34385635 81307175 116911159 130665413 171928175 584555795 653327065 2221312021 2922778975 3266635325 11106560105 55532800525