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50511132551 = 1141913678017
BaseRepresentation
bin101111000010101100…
…101011011110000111
311211101012121101200002
4233002230223132013
51311421322220201
635112100511515
73435466354055
oct570254533607
9154335541602
1050511132551
111a470243550
1299580ab59b
1349bc922019
1426325831d5
1514a96ab76b
hexbc2b2b787

50511132551 has 16 divisors (see below), whose sum is σ = 55281864960. Its totient is φ = 45770398080.

The previous prime is 50511132467. The next prime is 50511132599. The reversal of 50511132551 is 15523111505.

It is a de Polignac number, because none of the positive numbers 2k-50511132551 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 (50511182551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6296495 + ... + 6304511.

It is an arithmetic number, because the mean of its divisors is an integer number (3455116560).

Almost surely, 250511132551 is an apocalyptic number.

50511132551 is a deficient number, since it is larger than the sum of its proper divisors (4770732409).

50511132551 is a wasteful number, since it uses less digits than its factorization.

50511132551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9814.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 50511132551 in words is "fifty billion, five hundred eleven million, one hundred thirty-two thousand, five hundred fifty-one".

Divisors: 1 11 419 1367 4609 8017 15037 88187 572773 3359123 6300503 10959239 36950353 120551629 4591921141 50511132551