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53122146553 = 729673905753
BaseRepresentation
bin110001011110010100…
…111010000011111001
312002010011200122112101
4301132110322003321
51332243232142203
640223131543401
73560262536560
oct613624720371
9162104618471
1053122146553
1120590080a63
12a3665bab61
135017850218
1427dd250bd7
1515ada1541d
hexc5e53a0f9

53122146553 has 16 divisors (see below), whose sum is σ = 63741905280. Its totient is φ = 43306978176.

The previous prime is 53122146509. The next prime is 53122146557. The reversal of 53122146553 is 35564122135.

It is not a de Polignac number, because 53122146553 - 29 = 53122146041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53122146557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1939276 + ... + 1966477.

It is an arithmetic number, because the mean of its divisors is an integer number (3983869080).

Almost surely, 253122146553 is an apocalyptic number.

It is an amenable number.

53122146553 is a deficient number, since it is larger than the sum of its proper divisors (10619758727).

53122146553 is a wasteful number, since it uses less digits than its factorization.

53122146553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905856.

The product of its digits is 108000, while the sum is 37.

Adding to 53122146553 its reverse (35564122135), we get a palindrome (88686268688).

The spelling of 53122146553 in words is "fifty-three billion, one hundred twenty-two million, one hundred forty-six thousand, five hundred fifty-three".

Divisors: 1 7 29 67 203 469 1943 13601 3905753 27340271 113266837 261685451 792867859 1831798157 7588878079 53122146553