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55155004453 = 1014129132257
BaseRepresentation
bin110011010111011111…
…101001010000100101
312021100211212112022201
4303113133221100211
51400424140120303
641200551054501
73661535542153
oct632737512045
9167324775281
1055155004453
112143362020a
12a833371431
13527ca60313
1429532203d3
15167c21881d
hexcd77e9425

55155004453 has 8 divisors (see below), whose sum is σ = 55715005080. Its totient is φ = 54595276800.

The previous prime is 55155004447. The next prime is 55155004501. The reversal of 55155004453 is 35440055155.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38234718369 + 16920286084 = 195537^2 + 130078^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55155004453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55155004253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350901 + ... + 483157.

It is an arithmetic number, because the mean of its divisors is an integer number (6964375635).

Almost surely, 255155004453 is an apocalyptic number.

It is an amenable number.

55155004453 is a deficient number, since it is larger than the sum of its proper divisors (560000627).

55155004453 is a wasteful number, since it uses less digits than its factorization.

55155004453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136487.

The product of its (nonzero) digits is 150000, while the sum is 37.

The spelling of 55155004453 in words is "fifty-five billion, one hundred fifty-five million, four thousand, four hundred fifty-three".

Divisors: 1 101 4129 132257 417029 13357957 546089153 55155004453