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57551712643 = 479312007451
BaseRepresentation
bin110101100110010110…
…010111000110000011
312111112212200220212201
4311212112113012003
51420331214301033
642234444534031
74105120325455
oct654626270603
9174485626781
1057551712643
1122453494587
12b1a1b51317
135572465849
142add6642d5
15176c83e47d
hexd66597183

57551712643 has 4 divisors (see below), whose sum is σ = 57563724888. Its totient is φ = 57539700400.

The previous prime is 57551712623. The next prime is 57551712653. The reversal of 57551712643 is 34621715575.

57551712643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57551712643 - 213 = 57551704451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57551712593 and 57551712602.

It is not an unprimeable number, because it can be changed into a prime (57551712623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5998933 + ... + 6008518.

It is an arithmetic number, because the mean of its divisors is an integer number (14390931222).

Almost surely, 257551712643 is an apocalyptic number.

57551712643 is a deficient number, since it is larger than the sum of its proper divisors (12012245).

57551712643 is a wasteful number, since it uses less digits than its factorization.

57551712643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12012244.

The product of its digits is 882000, while the sum is 46.

The spelling of 57551712643 in words is "fifty-seven billion, five hundred fifty-one million, seven hundred twelve thousand, six hundred forty-three".

Divisors: 1 4793 12007451 57551712643